Unlock read-only shortcut Strg-Shift-M is not changing file status to Edit Mode

[Yetigo]

Version: 7.2.1.2 (x64) / LibreOffice Community
Build ID: 87b77fad49947c1441b67c559c339af8f3517e22
CPU threads: 8; OS: Windows 10.0 Build 19043; UI render: Skia/Raster; VCL: win
Locale: de-DE (de_DE); UI: en-GB
Calc: CL

I used to open my LO files read-only by default (File → Properties → Security → File Sharing Options: Open file read-only) and unlock them with Strg-Shift-M. (Edit → Edit-Mode). Since today the shortcut does not unlock the files any more. I can still unlock the files with Menue: Edit → Edit-Mode.

How could I define or redifine the shortcut?

[sokol92]

See Menu / Tools / Customize / Keyboard.

[Yetigo]

I tried to delete and redefine Str+Shift-+M but the shortcut didnt toggle Edit-Mode. I defined an additional shortcut Alt+Shift+M which does the job as expected.