Hi Thanks for help. OK.

But still I don't understand why this approach is so "old-school" and I don't get "because always was like that" approach :D. As we are progressing in terms of technology I think that CAD software should learn a bit from Illustration software solutions like Affinity, Sketch end so on.

Thanks for help :) I will do that with two arcs.
Cheers

YO! thanks for help! No, I just need a faster way to disconnect point into two. Sounds easy but as I learnt is not that obvi :)
Thanks! for your time!

Hi vasqes, it's not so much that it's just "that's the way it's always been done", it's an overall difference in priorities. In a CAD program the priority is on making accurate shapes and trying to avoid stuff that mutates shapes.

The Trim command in MoI will cut a curve and the remaining pieces have completely 100% the exact same shape as before. It's more about treating the curve as a piece of material and not focused on being a "node management" type thing like it would be in an 2D illustration program.

I do want to try and incorporate more 2D vector editing like behavior into MoI in the future though. The difference in overall focus can make that kind of difficult in many cases though.

- Michael