Dimension alterations on 2D drawings

Hi there
Sometimes I use shapr3d to do a pipework layout which I then convert to 2d for fabrication Drg’s. However I have to accurately draw this up in order to get the dimensions correct on the 2d conversion.

Could it be made to allow dimension alterations in 2d mode to allow a drawing of a shape to be drawn up quickly with no need to be really accurate, then input the dimensions needed in 2d mode by editing the dims already showing.

This would be a god send, as I currently edit some dims in pdf as it saves me working out all the pipe elbow centerlines and radii’s when in a rush.