Fast map change

[Stephan Koppel]

Sometimes we need to change maps and use same settings as previous. So it will be really nice to have the ability to change some textures fast.

For example sky texture (it is the most common case):

[Stephan Koppel]

upd

Maybe it will be more precise to put this option in this area

[Aliaksandr Brui]

Implemented in the next release.