No this is not possible yet. To implement this options we need to rework all dino spawns on the map. That's why this is a lower priority point atm. We first want to add the underwarter world, beacons and some other stuff. Also some of the momentary bugs will have to be fixed. The rework will probably intruduce a good amount of new bugs and problems, that's why we want to have the map in a much better state before we are doing so. Also this will need a good amount of time so we first want to add the other much asked for feature, which need significant less time.