ORIGINAL: omegaall
Nothing like answering your own question [:D].
[:D][:D][:D]
Yep, just "tile transfer" desired slope icon on top of basic layer (Main), preferably on layer/sect3. This leaves room for another layer in sect6 (trees ect.) Btw, you don´t need to take the normal slope icons in every case! Dependent upon map, you can try slightly different (from basic layer) colored shapes to create a more subtle "slope" effect. I´ll try giving some example soon.