To jbsjorty:

Thanks for answering

3. I think this is not a problem, if I understand correctly you think that connecting the curve to the solid makes it difficult to reproduce the curve... No, I guess this is a matter of a new "extract" command or similar.

9. What I said is that MOI will name the objects by default and we just change the name. Every app does that... Of course we have to be able to control the naming of the objects we need.

12. For every command there is a default option. Let's keep the present way as the default way and add an option... This doesn't increase the "clicks" if you don't need it. Also the option of a copy or not is not very important but nice to have. We can always have a copy and erase the initial curve after mirroring.