Setting the compose key on Xfce

The compose key is a handy tool to generate characters that aren't available on your keyboard. On Xfce there isn't a readily accessible way to set it, but it can be done rather easily from the Settings Editor:

1. Launch the Settings Editor from Applications > Settings > Settings Editor or via the terminal by executing the xfce4-settings-editor command

2. Select the keyboard-layout channel

3. Look for the Compose property under Default > XkbOptions > Compose

4. To enable the compose key you have to enter one of the following values in the Compose property:

   Compose key	Value
   Right Win	compose:rwin
   Left Win	compose:lwin
   Right Ctrl	compose:rctrl
   Left Ctrl	compose:lctrl
   Right Alt	compose:ralt

The resulting setting should look like this (I'm using the right Windows key in this example):