/clearobjects [-i | -l | -a] [NAME]

Options:
default (no -i/-l/-a): Immediately clear all objects in loaded mapblocks. Save a flag to clear unloaded mapblocks on load.
-i: Immediately modify all mapblocks on disk, including those not loaded currently
-l: Only clear objects in loaded mapblocks
-a: Only clear objects in active mapblocks
NAME: Only remove lua entities with this name. [Should this support glob/regex notation?]