Terrain mistake correction. Help please

Hi,
I recently made a map (32 by 64 tiles) and made a couple of custom units with different abilities. Now, I realize the map is ridiculously small and I don't want to start all over or copy/paste everything to a new map. Is there a way to reset map properties without deleting everything I made...
TY

Scenario > Map Size and Camera Bounds

You should really try explore the WE alot more...

Thanks!

I was tired of searching -_- looked in all the wrong places I guess