The format for groups is:
#GROUP ON/OFF
code, events, etc.
#GROUP END
You can then use:
.enable #GROUP
.disable #GROUP
To enable or disable the group.
To do that for your code:
#limite off
on join:#: {
.mode # +l $calc(%limite +1)
}
#limite end
Then you can use /enable #limite, and /disable #limite to toggle it.