Thank you for trying to help to answer your questions;
1/2) Please see attached. On tutorials there is a little tool to click to start dimension the pieces but on my Sketchup it’s in the pointer tool. (The big screen is my artboard. I pasted images of tutorials I was watching on youtube to show the different layouts and circled the tool I feel like I am missing .I can’t figure out if there is just a tool view I am missing.)
I currently using the Mac version of Pro (on a one month trial to test if this software works for the other artists).
3/4) I will try to change the Units/Precision Model info. That is a good suggestion. I understand that the dimension tool is only indication.
We are used to making items and then refining the dimensions after. For example I would make two rectangles (a top piece and a base) and I would make the top 5" and the bottom 1" and then decide the base should be 1.5" and the top 4.5". I was looking for a way to change the dimensions besides selecting and dragging the piece.
We are trying to do simple industrial design products.