Define each of your configuration sets (position, but you may want to display raids 10 men raids with bigger cells or different status or whatever..) in 3 different profiles, use GridDynamicZoneSwitch to automagically switch between your profiles according to the instance you are in.
First try and configure your different settings (which should include locations) in different profiles, then try to switch between them manually.
Is it updating properly ?
Then go into GridDynamicZoneSwitch settings, for each zone define the mode to "profile" and set the profile dropdown to appropriate profile name.
Those settings will be in action next time you zone into one of those instances.