Yes. You can save a shortcut scheme in the Work Environment of 11.
Then Export it and Import it into 15.
The problem is you will lose any new keyboard shortcuts that are default in 15 (if there are any - i.e. maybe something for the shell tool or the new trim commands).
In my opinion it is best to rework the Work Environment from scratch for each new version - unless it is highly customised.
Then it my be easier to just add in the new features to the old WE.
But jumping from 11 to 15 there may be quite a lot of new features to watch out for.
You can always run 2 separate Archicads - one with each WE so that you can compare them.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11