The overall plan seems to be when training as individual sides: First Grade will use the main Oval, 23's will use the facility to the rear of the main oval and the 19's are using the area between Magic Juniors and Adamstown Juniors (it has a name apparently I've just been too lazy to remember it).
At present as with most clubs a fair bit is done together, Adamstown 19's coach is not available on Mondays which forces that to happen also.
Not sure on the quality of lights the 23's and 19's have access once daylight savings start to but obviously good enough the club thinks it safe. And great for the grounds to be able to minimise the traffic each areas incurs.