MCG Curl a Spline
REQUIREMENTS: Max 2016 + SP3 +EXT1/2, Max 2017 Installation: Scripting, Install Max Creation Graph... This MCG will curl a Spline, multi curve splines. Works with both Max 2016 and 2017, although in 2017 you'll get deprecation messages, it will still compile and run.
Ver 1.10: added Delay option
Ver 1.20: added Curl Axis so you can curl vertically (Y) or flat (Z)