Thanks a lot for your reply. Do you know any more affordable kernels which could be worth to look?

What do you think about Open Cascade kernel (FreeCAD)? Could it bring a bit better fillets/ offsets/ shelling or it`s not worth to check?

I mean as addition to existing one. Something like that: https://discourse.mcneel.com/t/scripting-freecad-from-rhino-filletedge-case/135784

If it is worth to do it inside Rhino maybe it`s worth to have it inside MoI3d.

I`m only thinking loudly and I don`t want to start any software war.

Cheers!!!