Populate MSHFlexGrid with data

Hello ,
i'm not using The Ado Designer and i need to programmaticaly populate HFlex Grid with two tables linked by a specific field. I need to be in control to expand or collpase the rows.
How can i do that please ? Detailed description.
The tables name are Account and Currency linked by the currencyID field.
Anyway, do i need bands and if yes , how ?

Thanks really

I was just about to ask the same question.
I was on the path of setting the number of bands but get "Wrong number of arguments or invalid property asignment" msg with fg1.bands=2.

HELP!
TA
Garry