Hi Marc,

> Indeed, tabs could solve a lot of screen estate concerns.
>
> Would be nice to have the possibility to open 2 at once.

Yup! But that's why MoI already lets you have more than 2 tabs open at once ever since the first beta of version 1.0 - for example when you start MoI you'll have 3 tabs open at once: "Draw curve", "Edit", and "Construct".

I guess maybe it is not clear since it has been in there for some time, but MoI's overall UI system for the side pane is actually based on tabs already, and they are used precisely to make better use of the screen real estate...

- Michael