Hello everyone,

I'm fairly a beginner in solidworks, so please bear with me.

I'm going through the tutorial introsw.pdf and got to the point of making faucet handle.

I created a similar handle base sketch and used the revolve tool so now I have a solid body:

Thing is I saw in the bottom of the window that the document is under-defined, and thought it would be a good exercise to define it fully.

But when I try to change, per example, the base height - I cannot. it is grayed out.

I saw somewhere in my google search that I should just right-click it and change it to driving dimension, though it doesn't seem to appear in the menu:

How should I proceed?

Thanks,

Jordan.

P.S. I'm using SW2018 SP4, and can only find "smart dimension" tool in sketch menu.