Click click, type type. Here's a somewhat peculiar tutorial showing how to remap keyboard buttons to custom symbols using xev and xmodmap tools in Linux, covering a complex physical UK and virtual US keyboard layouts and inter-dependent three-symbol change, modifiers and secondary key functions, autostart scripts, and more. Enjoy. https://www.dedoimedo.com/computers/linux-keyboard-custom-remap.html Cheers, Mrk