i am trying to resize a map, however done in scmdraft, the map becomes bigger, but the original stays the same.
for example, im trying to stretch a 128x128 into a 256x256. however, when i do, the 128x128 stays in the corner, while the rest of the map is blank space.
is there a way to resize the entire map?

You Can Re-do the dimensions, but it will not re-size the terrain for you. It just gives you more room. You need to re-do it.

It does somewhat try to continue some Isometrical terrain, but I assume you're working with rectangular terrain, because it's "Blank Space" as you've said before.

aww dangit... so i have to redo this entire thing ...

Be more careful when choosing a map size next time.