"GPS||MM;Set_Color_Mode|0" For MM Night screen
"GPS||MM;Set_Color_Mode|1" For MM Day screen
Hope this helps :D
Got RR doing auto Day/Night skins, with MM changing screens on the RR "GPS" button.
That was the best I could do because when RR changes skin, MM has to be re-started anyway.....so it's no big deal just to hit the "GPS" button.
With the above commands, 1 on the day skin and 0 on the night skin, it ensures that MM is on the correct screen. :D
EDIT: Sorry.....that was repeating myself from my previous post....wasn't it. Please don't tell me off again !!!
Hmm, I still think it could be done using the onkinstart, but hey you got it working which is the main thing. And hopefully have learnt a bit more about both RR and MapMonkey :D