'System scheduler' is designed for it.

But system scheduler has start-time and repeat interval. How to tell it the day of week ?

'System scheduler' is designed for it.

But system scheduler has start-time and repeat interval. How to tell it the day of week ?

I have the same (or very simillar) config - using 4 wrap.2c boards, each with one or two wlan cards (Atheros) and ethernet. Connected together with ethernet, wlan card set as ap-bridge, the same essid and crypto setting, each ap other channel, each mikrotik has one configured bridge with two members...