[TYPO3-english] Simplify usergroup condition on TS

[Sergio Catalá Gil]

Hi list, 

I just want to show a certain content on the frontend using "usergroup"
condition on TS. My condition looks like:

[usergroup = 8,9,10,11,12]
  lib.Label = TEXT
  lib.Label.value = bla bla bla
[global]

These are my fe groups for content editors on the website; everything
works fine but I just want to simplify the condition, using a certain
group that includes all of them. 

I created a fe group (with id = 13) whose subgroups are 8, 9, 10, 11 and
12. But if I use it on the usergroup condition, my fe users can't see
the label. 

Isn't it possible to do it this way? Am I just doing something wrong?

Thanks in advance, 
Sergio