Forms Management best practice

Hello all, I have few questions about forms management. If you create a form, never use it. is it safe to delete it? If you used the form, then decided to change HTML design and keep same concepts, is it safe to do so?

Thanks very much

If you create a form, never use it. is it safe to delete it? Yes

If you used the form, then decided to change HTML design and keep same concepts, is it safe to do so? I wouldn’t delete that form. You could change the form and continue to use it.

Thank very much @ball One more question, Can I add a concept to an already existing and previously used form.

I saved a form with obsgroup. This included concept set with concepts that do not belong to that specific set in the dictionary, Does that mean that I did something bad to the database? I know HTML for entry will allow it but generate warnings for it

Thanks again