Entombed/free status is preserved across game reloads rather than retested. For example, a drop resting on a slab will remain at rest, although technically inside an obstructing node.
ALL drop velocities are zeroed on reload. This prevents resting-buried drops from burrowing below their current floor as they do in the default game. This only affects mods, as it's not possible to manually produce this condition under droplift.
* seconds (float): This is the time since calling invoke that the next lift will schedule its subsequent lift. If the drop is not already entombed, it proceeds as for 0 above.
I.e. a lift must occur AFTER the call and BEFORE the target time so it can schedule its NEXT lift to occur at that time, otherwise the sync request is ignored. The initial standing period before the first lift cannot be modified.
Drops remain "entombed" while there is an outstanding sync time, regardless of whether they are actually buried, but will only receive calls while buried. Lift will always exit on unburied drops, and a scheduled lift cannot be delayed by additional sync setting.