Movesector
movesector <sprite ID>
A function commonly called by the game code for moving sectors in X and Y axes (but not Z) during events such as earthquakes, rotating sectors, swinging doors and escalators.
The sprite ID and it's xvel and yvel will determine the new x-y and the rotation angle can be accessed through EVENT_MOVESECTOR.
Source code says that sprite's T1, T2 and T3 are used, where T2 is originIdx, T3 for rotateAngle but nothing for T1.