sandbox mode for square reader

A client of mine is using wordpress with wufoo right now and loves the sandbox feature that allows him to have clients put in all their info including credit card information and their order for personal review and then final processing. Is there any way to do this or something similar? His main thing is that he wants all their info, be able to manually review the order and then process it once he is done. Any help would be appreciated. Thanks.

This looks perfect! Thank you!!!