Enable/Disable outgoing firewall

[Guest]

[bitcom]

Hi everyone, I've got a very tiny wisp operation and for the first time in months I've been able to block some p2p apps using efw, and just using the default outgoing firewall nothing else. Now I just wanna block them during the day and enable them back during the night, so my question is: Is there a way to automatically enable/disable the outgoing firewall at certain times...
I'm using 2.2.1b

Thanx for reading this post and hope somebody can help me, since this is crucial for my operation...