Add members to relation

[ghost]

It is not possible to add members to existing relations. Or it's complicated.

Wished behaviour: Button next to delete member like above the tagging window (the s-button) with an M on it (like member). It adds an entry at the bottom of the member list which is empty. If I click on this entry, it gets active and I have to click on the object to be added (or several with ctrl-key?). In general it should behave a lot like the tagging window.

The transaction for the database should be deleting the relation and adding a new one. I think thats the most simple solution (but I dont know).

[MaestroGlanz]

I figured it out. But it would be more intuitive as I suggested it.