How to look at various tax scenarios

Can I create multiple returns using different scenarios in TT Premier? I want to try various scenarios with different IRA withdrawal amounts to see how much tax I will have to pay--not for filing, just for illustration.

If so, how many can I create? How do I do this? (please give explicit directions)

I will only file one tax return.

I downloaded TT Premier to my windows hard drive from Amazon purchase.

Thanks in advance!!