(MED version 6,896) from v A7.5
I have made a sewer, and I use 3 skins for different items there. When I have selected polygons to be skinned by walltexture (1), I have by mistake chosen 2 polygons from a rusty pipe to be skinned by walltexture.
How can I get the 2 polygons to be skinned with the rusty pipe texture?

* To be able to select the polygons in the pipe I would like to reskinn, I have to open the skin walltexture (and then corresponding polygons to that textures are shown in MED.
- I would now want to press EDIT - CREATE 6 SIDED map to skin it, which I can, but the polygon faces are then created on the walltexture skin again.
- if I change the skin in SKIN EDITOR to rusty pipe, the selected 2 polygons disappear from MED, and only the polygons already skinned with rusty pipe are shown.

(according to MED, the 2 polygons are now grouped as group 2 under the walltexture).

What am I doing wrong?