Vladimir Koylazov aka Vlado from Chaosgroup provided me with BerconMaps for 3dsmax 2015 with two bug fixes which should eliminate (or at least reduce 😉 ) crashing in Material Editor. So here you go, have fun!
For latest source code go to GitHub page of BerconMaps
I also hear that MultiTexture will soon have a new version for 3dsmax 2015. BerconTiles supports using bitmaps as tiles with MultiTexture, so you better check it out at CG-Source.