TablePopin question

I have a table with a TablePopin, so that every row has its corresponding popin, and inside the Popin I have another table with details related to that row. (using tablePopinToggleCell)

The thing is when I run the application all popins are expanded! And I need them to be closed because there are a lot of rows in that table.

Leaving blank the table property 'SelectedPopin' it shows closed all the popins, but when I expand one the rest are expanded also!! (So actually I have them binded to a context attribute that has the name of the Popin, every time i insert a nodeElement I set that the name of the corresponding popin)

So basically I wan to know if its possible to have multiple popins, that are showed closed and let the user expand for itself everyone of them.

I hope i explained myself.

Thanks!