Is 'BPC DataGrid' an absolute must for Dashboards with 'write-back' to BPC NW 10.0

Hi,

I am on BPC NW 10. I am trying to implement Dashboards with 'write-back' to BPC. I was only able to find 'BPC DataGrid' Flex2 and it looks like BPC10/BO Dashboard requires Flex4. Is there a work-around for the same?

NOTE : I tried using 'regular' grid, but it does not have the 'Editable' column which we can flip to 'True/False' as with a BPC Data Grid.

System :

Dashboard 6.0.5

BPC NW 10.0 SP11

yogi