I think you would have to sell and rebuy back into

I think you would have to sell and rebuy back into your Roth. If you did it within 30 days the wash rule would kick in. You can sell and rebuy when you are selling at a gain. You'll pay tax on that gain. If you are selling for a loss, you will lose that tax right off if you don't wait the 30 days. Many here know more about taxes than me, but that's what I remember.

I know others have converted their IRA to a Roth. Not what you are asking but thinking about how to maximize an opportunity is a good thought for others. Good you asked.