PBP2 only allows for scaling when you place a block.
You could do some trickery with Building Tools to make it do already placed blocks though.
To do it, just drag the "Scale" thingy from the "modify ui" thingy, uncheck "modify ui", check "scale" or whatever it's called, and type numbers into the 3 fields
Lol yeah that problem is my fault. ITR you hit it right on the head.I placed the two balast and *part who's name I cannot remember ('Part' )* then I used TGYD's building tools (from now on referred to as 'BT') to slect the two Part and turned on scaling with the length being set to (i believe) 8, then deselected the two Part, then turned off scaling, selected the two Part and balast and moved them to where I wanted it with BT.