When dealing with nested subgroups:

where the subgroups share a name, turning on a single subgroup turns on every subgroup with that name in the current layergroup.

I suspect the solution would be to use the full vidi_sub_group as the subgroup id - i have been unable to find out where to set it though
When dealing with nested subgroups:
where the subgroups share a name, turning on a single subgroup turns on every subgroup with that name in the current layergroup.
I suspect the solution would be to use the full
vidi_sub_groupas the subgroup id - i have been unable to find out where to set it though