Hello everyone
Is there a way to take over the MUI data from AmigaOS 4.0 / 4.1 FE in Morphos or do changes have to be made?

Greetz

Hi,

Copying MUI settings from ENV-ARC: should do the trick. Be sure to make some backup before in case of trouble.

If IDs used for storing settings hasn't been messed up between various MUI branch (ie: divergence between OS4 MUI and MorphOS MUI), it should work out of the box.

If you just want some generic MUI prefs that look like OS4, check this guide:
https://library.morph.zone/How_to_Make_MorphOS_Look_Like_OS4