Hi all,
(Hopefully) simple question: How do i merge 2 overlapping polygon points?

As you can see, The Polygons in the middle are overlapping (100%). I want to merge those, so then if i drag them, both images/textures will be affected at the same time.
I´ve tried the Geometry Singleton with its merge_polygons function:

But there is a problem. The polygon attribute does not give the position, but their coordinates in the UV map (i think).
So, do you know any other way of achieving this? Thanks!