Can I change my return? I have not file it, only click finish in Turbotax

Yes, you can change your return until it's filed in Turbotax. After it's filed, either electronically or by paper, you can only change it by filing an amended return.

But how? I check it , only options to download / print

Go into the help box and type "amend." then click on "find." At the top click "Jump to Amend. it will take you to the section where you can amend the return. You should only amend a return after you have filed it either electronically or by regular mail.

Wait: are you in the online Turbo Tax?