How to remap a single key in Language Input I am pretty new to Macs and these days I've been experiencing the whole frustration that comes when switching from Windows to Mac.. All my favourite shortcuts are so different or non-existent an so on..

I can live with that, there is a learning curve and I will get used to it (even though I used Karabiner to remap some shortcuts, there are plenty to learn :) )

Here comes the real question here. I am also using the Bulgarian keyboard, one of those cyrillic keyboards that have more letters than the normal keyboards can fit. On Windows though I had one letter (ч) which is under the `. It is in the same key on the Mac, with the sole difference it is located..next to Left Shift so it is super hard to reach.

Can I somehow remap the ч key to § ?

I tried with Karabiner, but didn't manage to do it (maybe I missed something).
If you are using the Bulgarian phonetic keyboard layout you can simply enable a Karabiner preset. Search for "Bulgarian" and enable "map ч to ±":