Option to disable "Cluster Scenery Placement" in servers

[Superjustinbros]

I've seen a good few parks (mostly, the three-hour Br34k servers) get vandalized by mass placement of one or several scenery items thanks to players being able to easily abuse the cluster scenery placement feature to flood a server. And with the inability to use a Clear Scenery feature, grievers can easily turn a single park from something enjoyable to a living hell that only the admin, who may not even be around, could fix if Clear Scenery isn't enabled. And even with it, the park may not look the same ever again.

[imlegos]

I still don't understand why this is not limited to just greenery.