Katala, that system for the tile maps.
I currently work with a sqaure, (in paintshop) rotated 45 deg, then resized to width: 100% height: 57%
then I set snap to grid in construct 2 to half width and half height of the resulting tile, giving me a perfect snap to grid with isometic tiling by means of sprites
Does require me to spawn/copy all the tiles ahead in the editor though.
But works really smooth.