After detailed study of the range of TurboCAD - even after watching various Youtube tutorials or training videos (highly recommended!) - I bought the Platinum version - and am thrilled: It takes a few days and "tutorials" in order to understand the scope of services - but the online help (the link but I had to "manually" Googling and save as a favorite) is very good - and now I can actually 3D modeling, drawings derived etc. etc.
In retrospect, so everything considered done right ...
And in the end another tip: only the online help makes the system "used" - and since I have learned that many program options go just now in the Pro or Platinum version. Therefore my tip: do not save at the wrong end and buy the same Paltinum.