From ZDoom Wiki
222:Scroll_Texture_Model (lineid, scrollbits)
|Warning: This special is not fully supported by the UDMF map format. Certain parameters, noted below, have been made obsolete by the ability to directly specify properties within the linedef structure. These parameters should be set to 0 when using the UDMF format.|
- lineid: The ID of the line to be affected. Obsolete in UDMF.
- scrollbits: The type of scroller:
- bit 0(1): Displacement scroller
- bit 1(2): Accelerative scroller