I'm currenly changing from VirtualStringTree to AdvStringGrid I had problems.
I would like to add a collapse expand button at DataArray in the example below adding the 3 items below it including the columns, which is the best way to go about it.
BTW the values are updated constantly, works good so far.
example layout
Varible Value <-Header
MyVar 3
DataArray 55,44,69
DataArray[0] 55
DataArray[1] 44
DataArray[2] 69
MyVar2 3