Having troubles while trying to make an only-VIP area...

I just built a nice area for VIP people... I was going to adjust the flags for groups (Using the latest version of residence), and "piston" flag doesn't work with /playerset (/pset) and /groupset (/gset), only with /generalset (/set). So I can't make that only VIPS open the pistons! I tried with setting the flag "move" to VIPs and denying it to all, but it's buggy.

So, I came here to ask you if you know any way I can configure that with Residence (I tried to add, manually, the piston flag at the config but it doesn't work). Or, I want to know if there is another plugin that can do that: Protecting areas and giving them different permissiosn for groups. I tried WorldGuard, but I'm not sure if WorldGuard can do this, I'm not sure because I don't understand WorldGuard at al...

Thank you for your help.