A possible workaround for tiling many tiles: if you are drawing many tiles at once on a map you can copy/paste groups of them.
Example:
I lay down one tile. Next to the first I lay down 3 more identical tiles. I grab all 4 together and copy them. Now I paste 4 tiles at once. I copy the 8 tiles and then paste 8 at once. Next, copy 16 tiles and paste 16 at once...etc.
You can fill a map wile tiles like this in very short order.
Hopefully this helps :)
- Gauss