How can I overlay two icons?

[stebu]

I think I once saw somewhere that a disablde cache's icon is made from two separate icons:
1) the cache symbol
2) a red diagonal bar

Is it possible to do this with any icon in <locus:icon>file:xxxxx.zip:yyy.png</locus:icon>?
If yes, how, please?

[Menion]

stebu this is currently not possible. Why you need such feature? Isn't simplier just to create a single icon?

[stebu]

Munzee just introduced a pet called Rover. It can sit on any type of munzee. I hoped I could combine two icons instead of making about 10 new icons. I guess I just have to go to the drawing board.

[Menion]

probably have to, sorry. No such feature exists