Warning: probably will not work acceptably on every Desktop Environment

So far I've tried it on MX Linux 19.4 and 21.3 Xfce, KDE and Fluxbox, also Mint Cinnamon 19.2 and 20, Ubuntu 22.04 Gnome, OpenSUSE Leap 15.1 KDE and Trisquel 10 Mate. For the Trisquel test I needed to add the 'Notification Area' to the Mate Panel because ExtraKeys needs a task-bar icon to function properly. None of the others needed any changes.
"Installation" is simple - it's just a single, self-contained executable file (the magic of PureBasic

ExtraKeys on Linux works a bit differently to the Windows equivalent - acts similar to a virtual keyboard and types into the current active window. Also puts the character into the clipboard. This Linux program is based on the 'Pro' edition so it can also output character codes in various formats. However, it is not designed as an actual virtual keyboard, nor is it intended as an alternative to any Character Map. The program has a small embedded Help (thanks to Thorsten's excellent MarkDown gadget).
Sorry, the program text is English only but it's all quite simple.
Download:- https://deeproot.uk/downloads/extrakeys-linux.tar.gz
