Change Set of colliding decor:
  10 string "set name", int "start", int "count"

Change all colliding cells' flags:
  20 int "flags" (0 = none, 1 = blockentity, 2 = block proj, 4 = block view

Delete decor:
  11 int "start", int "count" (also deletes start, so 1, 2 will delete 3)

Spawn/give METABIT:
  40 int "count"

hint:
  50 string "msg", int "time"