I apologise for the inconvenience caused.
I am testing this and would get back you soon.
We have the same situation with the German (and Swiss-German) keyboard.
Many people have complained about the poor support for shortcuts on non-English keyboards. See this topic in the official Adobe feedback forum: Lightroom: Cannot use keyboard shortcuts on non-english keyboard.
Even more have complained about the lack of a feature to let users reassign keyboard shortcuts: Lightroom: Allow for keyboard shortcut customization.
This forum is primarily a user-to-user forum in which Adobe product developers rarely participate. Adobe does say they read every post in the official feedback forum, and they occasionally participate. So I suggest you add your vote and opinion to the two topics I linked to -- that will make it (a little) more likely Adobe might eventually prioritize improvements. Posts in this forum here will have very little impact on Adobe product development.
an external plugin for remapping keyboard shortcuts.
The Keyboard Tamer plugin doesn't appear to be supported anymore. I haven't been able to get it to work for quite a while, and I've seen a number of similar reports.
There are several workarounds for the issue of non-English kebyoards, none of which completely solve the problem and which take time to set up, but they do help many work more efficiently with LR:
- Edit the file TranslatedStrings.txt directly to set the keyboard mappings you want: Some of the shortcuts don’t work with my language version or non-English keyboard—can I fix it?
- On Mac, use System Preferences > Keyboard > Shortcuts > App Shortcuts. This is easy but you can only remap commands that appear in LR's menus (but if you look hard enough, most of the commands are actually in the menus).
- On Windows, use the free, widely used Autohotkey (and the same issues with menus apply).