Map

Settlement Nameplates

SettlementNameplateVM
SettlementNameplateItem.xml

Example how to modify it. Adds additional icon on condition.

Track Settlements

// do not mark already tracked settlements
if (!Campaign.Current.VisualTrackerManager.CheckTracked(settlement))
{
    Campaign.Current.VisualTrackerManager.RegisterObject(settlement);
}

RemoveTrackedObject(ITrackableBase obj, bool forceRemove = false)

Can be marked several times to be tracked. In that case needs several clicks to remove tracking.