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Question: how do i get this strollet o stand up with out holding it?

i got the ultralight tandem sit n stand stoller,but only thing bugs me is the fact that wont stand in its own.i go airports alot on my own with my 4yr old and 11mth old and one the things have to do is fold n hold it util the attendents are ready to get it .or simply to jus take out trunk instead putting on floor..any answers?