I'm on a MacBook Pro and I'm trying to make big tiles from smaller tiles in TileSet. But pressing SHIFT doesn't seem to do it. Is this a Mac problem or am I missing something?

    cj1967 most likely a mac problem.

    Another PC feature is that we have Ctrl or control button that you can press in combination with shift button on the keyboard to draw a rectangle of tiles, instead of drawing lines with just shift (talking about tilemaps)