Good morning Dad3353,
thank you for quite nice reply. I´m quite familiar with Blender and modelling for XP11 - where rule "power of two" also apply but in addition there is 1 model = max 1 texture, which can be sometimes quite limited. First I will try to export some of my blends to gltf as yoi suggesting and walk a way to get a model to MBS. Thanks for you screens, they will be a big help for my first tryouts.
Concerning German - sometimes I use google translator, but I have my doubts about results. Translation of English to German probably results to some "funny German".
Good mornig Michael, thanks for interesting info. By coincidence do you know a physical place where MBS database is stored. After work I look info the program folder and into the MBS program folder in LocalApp, where i expected some file with recent date of creation or update, but no luck... *.mbp issue is now totally clear for me. Thanks.
Thank you all for your patience and replies and I wish you a nice and calm seasonal holiday.
H.