Cmasking render element won't select groups within groups.

[iLEZ]

I have a group in 3ds max with several groups in it. I know, I don't like groups, but sometimes you have to.
I'm trying to mask the top group, but the groups within the groups don't show up in the selection dialog, nor in the mask.

Station_group
|
|-transformer_group_1
|-transformer_group_2
|-transformer_group_3


Halp! :)

[romullus]

Open master group to be able access nested groups in selection dialogs. Would it help or not with cmasking RE, i don't know.

Edit: it works just fine!