Good day

Quick question, I want to have a button on a form disabled when the user comes from one path, but enabled when they come from a different path.
Example being the button (Button1) is on Form4, so when the user moves from Form3 to Form4, then Button1 is disabled. But if the user comes from Form6 to Form4 then Button1 is enabled.

I have googled this and looked around this site to find anything close to this, but have had no luck. I have no clue on how the code would look.

Thanks