How to transfer shortcuts/buttons from ver. 8 to vers. 12?

Upgraded system from XP to Win11, and Dopus vers. 8 to 12,

but can't figure out how to transfer my toolbar buttons (most important!!) and other settings to new Dopus vers from vers. 8

The toolbars are .dop files, which you can locate by pasting /dopusdata/Buttons into the path field and pushing return.

Opus 8 .dop toolbar files can still be loaded by Opus 12, despite the 16-20 year age gap between the two versions. But most other settings cannot be imported from Opus 8.