Can I reset form 2210 so that I can correct numbers previously provided?

To get back to the Form 2210 entries, all you need to do is search for penalty.  Use the Jump to penalty link to be taken back there to edit your entries.  

This doesn't answer the question.  He wanted to "reset" the form to be able to start over (or at least that is what I think I need to do).  I want to remove the whole thing and pretend I had not done it the first time.

Yes, you can Delete Form 2210 from your return.  Here's How to Delete Forms in TurboTax Online.

 

In TurboTax Desktop, go to FORMS at the upper right, click on Open Form and type in 2210.

 

When the form is displayed, click on Delete Form at the bottom.  The form will repopulate based on info in your return.

 

Here's more info on Form 2210.    

 

@WillieD