Manually change Interior Deminsions

[lazydazy]

I am currently using Deisgner Pro trial until I decide which version I need

One problem has plaqued me since day one and sometimes I can get it to work and sometimes not.

When drawing simple outside deminsions to represent the great room for which there are a lot of jogs, I like to fine tune the deminsions manually after drawing the exterior walls.

I then draw inteirior deminsions for the inside. The videos show you being able to click on the numeric deminsions and manually changing them with a rectangular box with the current deminsions pops up and you simply change them. When I try it, I have to click on the exterior wall and then click on the interior deminsion I can sometimes get it to work and change it manually, but usually I just manage to select the deminsion or the dialogue box pops up where you can change the exterior deminsions. And usually it will only work on 2 walls. What is the trick to just being able to change the interior deminsions by putting in a manual figure for each wall.