diff --git a/subscripts/5Udev_rules/1Add_udev_rules.sh b/subscripts/5Udev_rules/1Add_udev_rules.sh
new file mode 100755
index 0000000..ee3a9aa
--- /dev/null
+++ b/subscripts/5Udev_rules/1Add_udev_rules.sh
@@ -0,0 +1,223 @@
+#!/bin/bash
+
+source "$(dirname "$0")/DISREGARD_common/udev_rules_common.sh"
+
+choose_write_mode() {
+  local title="$1"
+  local prompt="$2"
+  OPTIONS=(
+    "1" "Create a new file"
+    "2" "Append to existing file"
+  )
+  local choice
+  choice=$(show_menu "$title" "$prompt")
+
+  if [ $? -ne 0 ]; then
+    exit 1
+  fi
+
+  if [ "$choice" = "1" ]; then
+    printf '%s\n' "new"
+  else
+    printf '%s\n' "append"
+  fi
+}
+
+choose_frame_template() {
+  list_files_from_dir "$(dirname "$0")/DISREGARD_udev_rules" "Udev config" "Select which udev rules you want to use:" "No udev rules were found."
+}
+
+resolve_rules_target_path() {
+  local file_name="$1"
+
+  if [[ "$file_name" == /* ]]; then
+    printf '%s\n' "$file_name"
+    return
+  fi
+
+  if [[ "$file_name" != *.rules ]]; then
+    file_name="${file_name}.rules"
+  fi
+
+  printf '/etc/udev/rules.d/%s\n' "$file_name"
+}
+
+get_device_info() {
+  local device="$1"
+  local device_path="/dev/$device"
+  local device_info
+
+  device_info=$(udevadm info "$device_path" | grep "S: serial/by-id/" || true)
+  device_info="${device_info}\n$(udevadm info "$device_path" | grep "DEVNAME" || true)"
+  device_info="${device_info}\n$(udevadm info "$device_path" | grep "ID_VENDOR_FROM_DATABASE" || true)"
+  device_info="${device_info}\n$(udevadm info "$device_path" | grep "ID_MODEL_FROM_DATABASE" || true)"
+  device_info="${device_info}\n$(udevadm info "$device_path" | grep "ID_VENDOR_ID" || true)"
+  device_info="${device_info}\n$(udevadm info "$device_path" | grep "ID_MODEL_ID" || true)"
+  device_info="${device_info}\n$(udevadm info "$device_path" | grep "ID_MODEL=" || true)"
+  device_info="${device_info}\n$(udevadm info "$device_path" | grep "ID_SERIAL=" || true)"
+  device_info="${device_info}\n$(udevadm info "$device_path" | grep "ID_SERIAL_SHORT" || true)"
+  device_info="${device_info}\n$(udevadm info "$device_path" | grep "ID_PCI_CLASS_FROM_DATABASE" || true)"
+  device_info="${device_info}\n$(udevadm info "$device_path" | grep "ID_PCI_SUBCLASS_FROM_DATABASE" || true)"
+
+  printf '%b\n' "$device_info"
+}
+
+get_udev_value() {
+  local device="$1"
+  local key="$2"
+  udevadm info "/dev/$device" | grep "$key" | head -n 1 | sed -e "s/^.*=//"
+}
+
+choose_mrs_board() {
+  # Shows a dialog with a list of .rules files from the DISREGARD_udev_rules directory and allows the user to select one
+  template_file=$(choose_frame_template)
+
+  # If no template file was found or selected, exit the script
+  if [ -z "$template_file" ]; then
+    exit 1
+  fi
+
+  # Replace placeholder values in the rules template
+  template_contents=$(sed -e "s/TO_BE_REPLACED/$USER/g" "$template_file")
+
+  printf "%s\n\n" "$template_contents" >>"$tmp_file"
+}
+
+configure_connected_devices() {
+  # List devices that the user might be interesting in adding udev rules for
+  devices=$(ls /dev | grep -e ttyUSB -e ttyACM -e ttyTHS)
+
+  if [ -z "$devices" ]; then
+    msg_box "No devices matching the ttyUSBx, ttyACMx, or ttyTHS pattern found."
+    exit 1
+  fi
+
+  generated_rules=""
+
+  # Loop over found devices and for each prompt user whether they want to add a udev rule for that device.
+  # If they do, ask what they want to name the symlink for that device and then write the corresponding udev rule to target file
+  for device in $devices; do
+    device_info=$(get_device_info "$device")
+    idVendor=$(get_udev_value "$device" "ID_VENDOR_ID")
+    idProduct=$(get_udev_value "$device" "ID_MODEL_ID")
+    Serial=$(get_udev_value "$device" "ID_SERIAL_SHORT")
+
+    yesno_def_yes "Do you want to add a udev rule for this device? $device:\n$device_info"
+    ret_val=$?
+
+    # skip unless user answered Yes (return code 0)
+    if [ $ret_val -ne 0 ]; then
+      continue
+    fi
+
+    symlink=$(input_box "What should this device be named?")
+    if [ -z "$symlink" ]; then
+      continue
+    fi
+
+    rule_line="SUBSYSTEM==\"tty\", ATTRS{idVendor}==\"$idVendor\", ATTRS{idProduct}==\"$idProduct\""
+    if [ -n "$Serial" ]; then
+      rule_line="$rule_line, ATTRS{serial}==\"$Serial\""
+    fi
+    rule_line="$rule_line, SYMLINK+=\"$symlink\", OWNER=\"$USER\", MODE=\"0666\""
+
+    generated_rules+="$rule_line"$'\n'
+  done
+
+  if [ -z "$generated_rules" ]; then
+    msg_box "No udev rules were added."
+    exit 1
+  fi
+
+  echo "$generated_rules" >>"$tmp_file"
+}
+
+choose_where_write_rules() {
+  # Shows a dialog asking how to store the rule, either in a new file or appended to an existing one
+  # If the user chooses to create a new file, they are asked for the name of the new file.
+  # If a file with that name already exists, the script asks if the user wants to overwrite the file
+  write_mode=$(choose_write_mode "Udev config" "How do you want to store these udev rules?")
+  if [ "$write_mode" = "new" ]; then
+    target_file_name=$(input_box "What should the new udev rules file be named?" "99-usb-serial-MRS.rules")
+    if [ -z "$target_file_name" ]; then
+      exit 1
+    fi
+
+    target_file=$(resolve_rules_target_path "$target_file_name")
+    if [ -z "$target_file" ]; then
+      exit 1
+    fi
+
+    if [ -e "$target_file" ]; then
+      yesno_def_no "The file already exists: $target_file\n\nDo you want to overwrite this file with the selected rules instead?"
+      ret_val=$?
+
+      # If user did not agree to overwrite, abort
+      if [ $ret_val -ne 0 ]; then
+        exit 1
+      fi
+
+    fi
+  elif [ "$write_mode" = "append" ]; then
+    target_file=$(list_existing_udev_rules_file)
+    if [ -z "$target_file" ]; then
+      exit 1
+    fi
+  else
+    exit 1
+  fi
+}
+
+# Create a temp file for the rules before we write them to the final destination
+tmp_file=$(mktemp)
+trap 'rm -f "$tmp_file"' EXIT # Ensure the temp file is removed when the script exits
+
+# Ask if the user has a distribution board
+yesno_def_yes "Do you have a MRS distribution board with existing udev .rules file?"
+ret_val=$?
+
+if [ $ret_val -eq 0 ]; then
+  choose_mrs_board
+fi
+
+# Ask if the user wants to add rules for connected devices (ttyUSBx, ttyACMx, ttyTHSx)
+yesno_def_yes "Do you want to add rules for connected devices (ttyUSBx, ttyACMx, ttyTHSx)?"
+ret_val=$?
+
+if [ $ret_val -eq 0 ]; then
+  configure_connected_devices
+fi
+
+# If the temp file is empty at this point, there are no rules to write, so we can exit the script
+if [ ! -s "$tmp_file" ]; then
+  msg_box "No udev rules were selected or generated, so nothing to write."
+  exit 1
+fi
+
+# Ask the user where they want to write the rules (new file, overwrite existing file, append to existing file)
+choose_where_write_rules
+
+sed -i '1s/^/# Following lines were added by MRS UAV System Install utility:\n/' $tmp_file
+
+yesno_def_yes "Write the following rules to this file?\nTarget: $target_file\n\nNew rules:\n$(cat "$tmp_file")"
+ret_val=$?
+
+# abort if user did not confirm
+if [ $ret_val -ne 0 ]; then
+  exit 1
+fi
+
+if [ "$write_mode" = "new" ]; then
+  # If the user chose to create a new file, we can just move the temp file to the target location
+  sudo mv "$tmp_file" "$target_file"
+else
+  # If the user chose to append to an existing file, we need to concatenate the temp file with the existing file and write the result to the target location
+  cat "$tmp_file" >>"$target_file"
+  rm "$tmp_file"
+fi
+
+sudo chown root:root "$target_file"
+sudo chmod 644 "$target_file"
+
+sudo udevadm control --reload-rules
+sudo udevadm trigger
diff --git a/subscripts/5Udev_rules/1Setup_new_udev_rules_file.sh b/subscripts/5Udev_rules/1Setup_new_udev_rules_file.sh
deleted file mode 100755
index 877505f..0000000
--- a/subscripts/5Udev_rules/1Setup_new_udev_rules_file.sh
+++ /dev/null
@@ -1,210 +0,0 @@
-#!/bin/bash
-show_menu() {
-  whiptail --title "Udev config" --menu "$1:" 0 0 0 "${OPTIONS[@]}" 3>&1 1>&2 2>&3
-}
-
-yesno_def_no () {
-  whiptail --title "Netplan Config" --yesno "$1" --yes-button "No" --no-button "Yes" 0 0
-  ret_val=$?
-
-  if [ $ret_val -eq 255 ]; then
-    exit 1
-  elif [ $ret_val -eq 1 ]; then
-    # echo "User hit Yes"
-    return 1
-  elif [ $ret_val -eq 0 ]; then
-    # echo "User hit No"
-    return 0
-  else
-    echo "Error state"
-  fi
-}
-
-yesno_def_yes () {
-  whiptail --title "Netplan Config" --yesno "$1"  0 0
-  ret_val=$?
-
-  if [ $ret_val -eq 255 ]; then
-    exit 1
-  elif [ $ret_val -eq 0 ]; then
-    # echo "User hit Yes"
-    return 1
-  elif [ $ret_val -eq 1 ]; then
-    # echo "User hit No"
-    return 0
-  else
-    echo "Error state"
-  fi
-}
-
-input_box () {
-  tmp=$(whiptail --inputbox "$1" 0 0 "$2" 3>&1 1>&2 2>&3)
-  ret_val=$?
-
-  if [ $ret_val -eq 255 ]; then
-    # User hit Escape
-    exit 1
-  elif [ $ret_val -eq 1 ]; then
-    # User hit Cancel
-    exit 1
-  elif [ $ret_val -eq 0 ]; then
-    # valid input
-    echo $tmp #this will output the string that is user input, and we can capture it into a variable - e.g. foo=$(input_box)
-    return 0
-  else
-    echo "Error state"
-    exit 0
-  fi
-}
-
-error_msg () {
-  whiptail --title "Netplan config" --msgbox "$1" 0 0
-}
-
-yesno_def_no "Delete some selected previous udev rules files? (Remanants from previous setups etc.)"
-ret_val=$?
-
-if [ $ret_val -eq 1 ]; then
-  OPTIONS=()
-  FULL_FILEPATHS=()
-
-  folder_path="/etc/udev/rules.d"
-  index="1"
-  for file in "$folder_path"/*; do
-    filename=$file
-    filename="${file##*"/"}"
-    # filename="${filename%.*}"
-    # filename="${filename//_/ }"
-
-    if [[ ! -d ${file} ]]; then
-      OPTIONS+=("$index")
-      let "index++"
-      has_99=$(echo $filename | grep "99")
-      OPTIONS+=("$filename")
-      OPTIONS+=("OFF")
-      FULL_FILEPATHS+=("$file")
-    fi
-  done
-
-  SELECTIONS=$(whiptail --separate-output --title "Udev rules setup" --checklist "Delete any previous udev rules file?\nCAUTION - this can break things! Only delete files if you know what you are doing.\n\nChoose options by pressing the spacebar" 0 0 0 "${OPTIONS[@]}" 3>&1 1>&2 2>&3)
-
-  ret_val=$?
-
-  if [[ "$ret_val" -eq 1 ]]; then
-    exit 1
-  fi
-  if [[ "$ret_val" -eq 255 ]]; then
-    exit 1
-  fi
-
-  for CHOICE in $SELECTIONS; do
-    sudo rm ${FULL_FILEPATHS[$((CHOICE - 1))]}
-  done
-fi
-
-FILENAME=/tmp/99-usb-serial-MRS.rules
-sudo rm $FILENAME
-
-yesno_def_yes "Are you using an MRS distribution board?"
-ret_val=$?
-
-if [ $ret_val -eq 1 ]; then
-
-  OPTIONS=()
-  FULL_FILEPATHS=()
-
-  folder_path="$(dirname "$0")/DISREGARD_udev_rules"
-  index="1"
-  for file in "$folder_path"/*; do
-    filename=$file
-    filename="${file##*"/"}"
-    # filename="${filename%.*}"
-    # filename="${filename//_/ }"
-
-    if [[ ! -d ${file} ]]; then
-      OPTIONS+=("$index")
-      let "index++"
-      has_99=$(echo $filename | grep "99")
-      OPTIONS+=("$filename")
-      FULL_FILEPATHS+=("$file")
-    fi
-  done
-  # echo $OPTIONS
-
-  chosen_filename=""
-  choice=$(show_menu "What frame udev rules do you want to use?")
-  if [ $? -eq 0 ]; then
-    chosen_filename=$(echo ${FULL_FILEPATHS[$((choice - 1))]})
-  else
-    # echo "Menu canceled."
-    exit 1
-  fi
-
-  cp $chosen_filename $FILENAME
-
-else
-  touch $FILENAME
-fi
-
-hostname=$(cat /etc/hostname)
-sudo chown root:root $FILENAME
-
-sudo sed -i -e "s/TO_BE_REPLACED/$hostname/g" $FILENAME
-
-devices=$(ls /dev | grep -e ttyUSB -e ttyACM)
-
-if [ -z "${devices}" ]; then
-  error_msg "No devices matching the ttyUSBx or ttyACMx pattern found."
-else
-
-
-  for device in ${devices}; do
-
-    device_info=$(udevadm info /dev/$device | grep "S: serial/by-id/")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "DEVNAME")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_VENDOR_FROM_DATABASE")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_MODEL_FROM_DATABASE")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_VENDOR_ID")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_MODEL_ID")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_MODEL=")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_SERIAL=")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_SERIAL_SHORT")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_PCI_CLASS_FROM_DATABASE")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_PCI_SUBCLASS_FROM_DATABASE")
-
-    idVendor=$(udevadm info /dev/$device | grep "ID_VENDOR_ID")
-    idVendor="${idVendor##*"="}"
-    idProduct=$(udevadm info /dev/$device | grep "ID_MODEL_ID")
-    idProduct="${idProduct##*"="}"
-    Serial=$(udevadm info /dev/$device | grep "ID_SERIAL_SHORT")
-    Serial="${Serial##*"="}"
-
-
-    yesno_def_yes "Do you want to add udev rule for this device? $device:\n$device_info"
-    ret_val=$?
-
-    if [ ! $ret_val -eq 1 ]; then
-      continue
-    fi
-
-    symlink=$(input_box "What should this device be named?") # NOTE - when called like this, we cannot "exit 0" from within the inputbox() function, as it is ran in a sub-shell, and the exit will only exit the sub-shell
-    ret_val=$?
-
-    if [ $ret_val -eq 255 ]; then
-      exit 1
-    fi
-    if [ $ret_val -eq 1 ]; then
-      exit 1
-    else
-      echo -e "\n#Following line was added by MRS UAV System Intall utility:" | sudo tee -a $FILENAME > /dev/null
-
-      if [ -z "${Serial}" ]; then
-        echo -e "SUBSYSTEM==\"tty\", ATTRS{idVendor}==\"$idVendor\", ATTRS{idProduct}==\"$idProduct\", SYMLINK+=\"$symlink\", OWNER=\"$hostname\", MODE=\"0666\"" | sudo tee -a $FILENAME > /dev/null
-      else
-        echo -e "SUBSYSTEM==\"tty\", ATTRS{idVendor}==\"$idVendor\", ATTRS{idProduct}==\"$idProduct\", ATTRS{serial}==\"$Serial\", SYMLINK+=\"$symlink\", OWNER=\"$hostname\", MODE=\"0666\"" | sudo tee -a $FILENAME > /dev/null
-      fi
-    fi
-  done
-fi
-
-sudo cp $FILENAME /etc/udev/rules.d/
diff --git a/subscripts/5Udev_rules/2Add_udev_rules_to_an_existing_file.sh b/subscripts/5Udev_rules/2Add_udev_rules_to_an_existing_file.sh
deleted file mode 100755
index 3384abe..0000000
--- a/subscripts/5Udev_rules/2Add_udev_rules_to_an_existing_file.sh
+++ /dev/null
@@ -1,142 +0,0 @@
-#!/bin/bash
-
-show_menu() {
-  whiptail --title "Udev config" --menu "$1:" 0 0 0 "${OPTIONS[@]}" 3>&1 1>&2 2>&3
-}
-
-inputbox() {
-  whiptail --inputbox "$1" 10 30 3>&1 1>&2 2>&3
-}
-
-yesno_def_no () {
-  whiptail --title "Udev Config" --yesno "$1" --yes-button "No" --no-button "Yes" 0 0
-  ret_val=$?
-
-  if [ $ret_val -eq 255 ]; then
-    exit 1
-  elif [ $ret_val -eq 1 ]; then
-    # echo "User hit Yes"
-    return 1
-  elif [ $ret_val -eq 0 ]; then
-    # echo "User hit No"
-    return 0
-  else
-    echo "Error state"
-  fi
-}
-
-yesno_def_yes () {
-  whiptail --title "Udev Config" --yesno "$1"  0 0
-  ret_val=$?
-
-  if [ $ret_val -eq 255 ]; then
-    exit 1
-  elif [ $ret_val -eq 0 ]; then
-    # echo "User hit Yes"
-    return 1
-  elif [ $ret_val -eq 1 ]; then
-    # echo "User hit No"
-    return 0
-  else
-    echo "Error state"
-  fi
-}
-
-error_msg () {
-  whiptail --title "Udev config" --msgbox "$1" 0 0
-}
-
-OPTIONS=()
-FULL_FILEPATHS=()
-
-folder_path="/etc/udev/rules.d"
-index="1"
-for file in "$folder_path"/*; do
-  filename=$file
-  filename="${file##*"/"}"
-  # filename="${filename%.*}"
-  # filename="${filename//_/ }"
-
-  if [[ ! -d ${file} ]]; then
-    OPTIONS+=("$index")
-    let "index++"
-    has_99=$(echo $filename | grep "99")
-    OPTIONS+=("$filename")
-    FULL_FILEPATHS+=("$file")
-  fi
-done
-# echo $OPTIONS
-
-chosen_filename=""
-choice=$(show_menu "Select which udev rules file do you want to add to:")
-if [ $? -eq 0 ]; then
-  chosen_filename=$(echo ${FULL_FILEPATHS[$((choice - 1))]})
-else
-  # echo "Menu canceled."
-  exit 1
-fi
-
-
-yesno_def_yes "Do you want to add to this file? $chosen_filename?\n\ncontents: \n\n\n$(cat $chosen_filename)"
-ret_val=$?
-
-if [ ! $ret_val -eq 1 ]; then
-  exit 1
-fi
-devices=$(ls /dev | grep -e ttyUSB -e ttyACM)
-
-if [ -z "${devices}" ]; then
-  error_msg "No devices matching the ttyUSBx or ttyACMx pattern found."
-else
-
-  hostname=$(cat /etc/hostname)
-
-  for device in ${devices}; do
-
-    device_info=$(udevadm info /dev/$device | grep "S: serial/by-id/")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "DEVNAME")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_VENDOR_FROM_DATABASE")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_MODEL_FROM_DATABASE")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_VENDOR_ID")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_MODEL_ID")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_MODEL=")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_SERIAL=")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_SERIAL_SHORT")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_PCI_CLASS_FROM_DATABASE")
-    device_info="${device_info}\n"$(udevadm info /dev/$device | grep "ID_PCI_SUBCLASS_FROM_DATABASE")
-
-    idVendor=$(udevadm info /dev/$device | grep "ID_VENDOR_ID")
-    idVendor="${idVendor##*"="}"
-    idProduct=$(udevadm info /dev/$device | grep "ID_MODEL_ID")
-    idProduct="${idProduct##*"="}"
-    Serial=$(udevadm info /dev/$device | grep "ID_SERIAL_SHORT")
-    Serial="${Serial##*"="}"
-
-
-    yesno_def_yes "Do you want to add udev rule for this device? $device:\n$device_info"
-    ret_val=$?
-
-    if [ ! $ret_val -eq 1 ]; then
-      continue
-    fi
-
-    symlink=$(inputbox "What should this device be named?") # NOTE - when called like this, we cannot "exit 0" from within the inputbox() function, as it is ran in a sub-shell, and the exit will only exit the sub-shell
-    ret_val=$?
-
-    if [ $ret_val -eq 255 ]; then
-      exit 1
-    fi
-    if [ $ret_val -eq 1 ]; then
-      exit 1
-    else
-      echo $symlink
-      echo -e "\n#Following line was added by MRS UAV System Intall utility:" | sudo tee -a $chosen_filename > /dev/null
-
-      if [ -z "${Serial}" ]; then
-        echo -e "SUBSYSTEM==\"tty\", ATTRS{idVendor}==\"$idVendor\", ATTRS{idProduct}==\"$idProduct\", SYMLINK+=\"$symlink\", OWNER=\"$hostname\", MODE=\"0666\"" | sudo tee -a $chosen_filename > /dev/null
-      else
-        echo -e "SUBSYSTEM==\"tty\", ATTRS{idVendor}==\"$idVendor\", ATTRS{idProduct}==\"$idProduct\", ATTRS{serial}==\"$Serial\", SYMLINK+=\"$symlink\", OWNER=\"$hostname\", MODE=\"0666\"" | sudo tee -a $chosen_filename > /dev/null
-      fi
-    fi
-  done
-fi
diff --git a/subscripts/5Udev_rules/2Remove_udev_rules.sh b/subscripts/5Udev_rules/2Remove_udev_rules.sh
new file mode 100755
index 0000000..09383d8
--- /dev/null
+++ b/subscripts/5Udev_rules/2Remove_udev_rules.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+source "$(dirname "$0")/DISREGARD_common/udev_rules_common.sh"
+
+target_file=$(list_existing_udev_rules_file)
+if [ -z "$target_file" ]; then
+  exit 1
+fi
+
+yesno_def_yes "Do you want to delete this file?\nFile: $target_file\nContents:\n$(cat "$target_file")"
+ret_val=$?
+
+# abort if user did not confirm
+if [ $ret_val -ne 0 ]; then
+  exit 1
+fi
+
+sudo rm "$target_file"
+
+sudo udevadm control --reload-rules
+sudo udevadm trigger
+
+exit 1 # Exit 1 so that we go back to the udev menu instead of the main menu
diff --git a/subscripts/5Udev_rules/3List_udev_rules.sh b/subscripts/5Udev_rules/3List_udev_rules.sh
new file mode 100755
index 0000000..31b5f0c
--- /dev/null
+++ b/subscripts/5Udev_rules/3List_udev_rules.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+source "$(dirname "$0")/DISREGARD_common/udev_rules_common.sh"
+
+target_file=$(list_existing_udev_rules_file)
+if [ -z "$target_file" ]; then
+  exit 1
+fi
+
+msg_box "File: $target_file\nContents:\n$(cat "$target_file")"
+
+exit 1 # Exit 1 so that we go back to the udev menu instead of the main menu
diff --git a/subscripts/5Udev_rules/DISREGARD_common/udev_rules_common.sh b/subscripts/5Udev_rules/DISREGARD_common/udev_rules_common.sh
new file mode 100755
index 0000000..4061a29
--- /dev/null
+++ b/subscripts/5Udev_rules/DISREGARD_common/udev_rules_common.sh
@@ -0,0 +1,102 @@
+#!/bin/bash
+
+show_menu() {
+  whiptail --title "$1" --menu "$2" 0 0 0 "${OPTIONS[@]}" 3>&1 1>&2 2>&3
+}
+
+ask_yesno() {
+  local prompt="$1"
+  local default="$2" # "yes" or "no"
+
+  if [ "$default" = "no" ]; then
+    whiptail --title "Udev Config" --yesno "$prompt" 0 0 --defaultno
+  else
+    whiptail --title "Udev Config" --yesno "$prompt" 0 0
+  fi
+
+  ret_val=$?
+  if [ $ret_val -eq 255 ]; then
+    exit 1
+  elif [ $ret_val -eq 0 ]; then
+    return 0
+  elif [ $ret_val -eq 1 ]; then
+    return 1
+  else
+    echo "Error state"
+    exit 1
+  fi
+}
+
+yesno_def_no() {
+  ask_yesno "$1" "no"
+}
+
+yesno_def_yes() {
+  ask_yesno "$1" "yes"
+}
+
+input_box() {
+  local prompt="$1"
+  local default_value="$2"
+  local tmp
+  tmp=$(whiptail --inputbox "$prompt" 0 0 "$default_value" 3>&1 1>&2 2>&3)
+  ret_val=$?
+
+  if [ $ret_val -eq 255 ]; then
+    exit 1
+  elif [ $ret_val -eq 1 ]; then
+    exit 1
+  elif [ $ret_val -eq 0 ]; then
+    printf '%s\n' "$tmp"
+    return 0
+  else
+    echo "Error state"
+    exit 0
+  fi
+}
+
+msg_box() {
+  whiptail --title "Udev config" --msgbox "$1" 0 0
+}
+
+list_files_from_dir() {
+  local folder_path="$1"
+  local menu_title="$2"
+  local menu_prompt="$3"
+  local empty_message="$4"
+  local options=()
+  local files=()
+  local index=1
+  local file
+
+  shopt -s nullglob
+  for file in "$folder_path"/*; do
+    if [[ -d "$file" ]]; then
+      continue
+    fi
+
+    options+=("$index" "${file##*/}")
+    files+=("$file")
+    index=$((index + 1))
+  done
+  shopt -u nullglob
+
+  if [ ${#files[@]} -eq 0 ]; then
+    msg_box "$empty_message"
+    return 1
+  fi
+
+  OPTIONS=("${options[@]}")
+  local choice
+  choice=$(show_menu "$menu_title" "$menu_prompt")
+
+  if [ $? -ne 0 ]; then
+    exit 1
+  fi
+
+  printf '%s\n' "${files[$((choice - 1))]}"
+}
+
+list_existing_udev_rules_file() {
+  list_files_from_dir "/etc/udev/rules.d" "Udev config" "Select which udev rules file you want to use:" "No files found in /etc/udev/rules.d."
+}
diff --git a/subscripts/5Udev_rules/DISREGARD_udev_rules/X500.rules b/subscripts/5Udev_rules/DISREGARD_udev_rules/X500.rules
index 47edeb0..dc6c796 100644
--- a/subscripts/5Udev_rules/DISREGARD_udev_rules/X500.rules
+++ b/subscripts/5Udev_rules/DISREGARD_udev_rules/X500.rules
@@ -1,9 +1,9 @@
 # RULES for X500 Distribution Board
 # Pixhawk
-SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6011", ENV{ID_USB_INTERFACE_NUM}=="03", SYMLINK+="pixhawk",OWNER="TO_BE_REPLACED",MODE="0666"
+SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6011", ENV{ID_USB_INTERFACE_NUM}=="02", SYMLINK+="pixhawk",OWNER="TO_BE_REPLACED",MODE="0666"
 # MRS Module 1
 SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6011", ENV{ID_USB_INTERFACE_NUM}=="00", SYMLINK+="MRS_MODULE1",OWNER="TO_BE_REPLACED",MODE="0666"
 # MRS Module 2
 SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6011", ENV{ID_USB_INTERFACE_NUM}=="01", SYMLINK+="MRS_MODULE2",OWNER="TO_BE_REPLACED",MODE="0666"
 # MRS Module 3
-SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6011", ENV{ID_USB_INTERFACE_NUM}=="02", SYMLINK+="MRS_MODULE3",OWNER="TO_BE_REPLACED",MODE="0666"
+SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6011", ENV{ID_USB_INTERFACE_NUM}=="03", SYMLINK+="MRS_MODULE3",OWNER="TO_BE_REPLACED",MODE="0666"
diff --git a/subscripts/5Udev_rules/DISREGARD_udev_rules/robocore.rules b/subscripts/5Udev_rules/DISREGARD_udev_rules/robocore.rules
new file mode 100644
index 0000000..1c73159
--- /dev/null
+++ b/subscripts/5Udev_rules/DISREGARD_udev_rules/robocore.rules
@@ -0,0 +1,2 @@
+SUBSYSTEM=="tty", KERNEL=="ttyTHS0", SYMLINK+="pixhawk", OWNER="TO_BE_REPLACED", MODE="0666"
+