Enhancement:Conditional Appearance of Custom Field

To whom it may concern:

I used to use Ultimate Member - recently transitioned off, and am using wpForo and custom fields exclusively.  Love it!  But...

I have a file upload field, that the user should not see / use UNLESS they are marked as "certified" by the administrator.

Situation: I have a custom checkbox field: Certified?  Yes / No (checked is Yes) - this is not editable by the user themselves (which is fine) and is set by administrative action.

I have a 2nd field: "Certificate File" (file upload), which IS editable by the user.

Instead, I'd like the field to have the following:

a) either be NOT editable unless the CheckBox field is set to YES

(the ability to setup conditional view / edit rules based on other field settings) (this is something Ultimate Member does very well, but I think wpForo advanced custom fields could do this too)  (again, to replace UM completely).

Thanks!