TeXstudio 2.12.4 (hg 6476:3e5c3afa4719)
Windows 7 & 10
Attempting to add a shortcut under basic key mapping does not work:
While it is possible to add a row and assign a key, it is not possible to assign a command
I belive this is the same issue as #2135 however it is not resolve on Windows.
you need to be more precise with your report. I have no idea what the issue is.
https://sourceforge.net/p/texstudio/wiki/Reporting%20Bugs/
You are using 2.12.4, which has this bug as reported in [bugs:#2135]. Of course, we cannot fix your installed 2.12.4 but only future versions. Please wait for the next official release or use the latest development snapshot at https://sourceforge.net/projects/texstudio/files/texstudio/TeXstudio%20development/
Related
Bugs:
#2135