In Galaxy Editor for beta all i had to do was make the pointer for the unit/building smaller but for some reason after i bought the game and ran editor they was no way of making the scale smaller so i could stack buildings on each other.

so basically how do i stack buildings with the editor or have the terran and a building really close together becoz i cannot stack building right now.

IIRC, you should be able to hold shift while placing units to stack them either on top of each other to to stack them staggered.

100% true.
You might be interested in this little "guide": http://www.staredit.net/239428/

If you want unit to stay stacked, you'll need to use the Data Editor. Go in the units' properties and change their "Movement - Radius" to 0.

thank you