Help Disable Collision between ropes

[sagaman]

Hi there, in my project I have 3 obi ropes and they share the same rope blueprint. At runtime, these ropes collide with each other. I want to disable those collisions between ropes. I've already tried collision filtering but once I change the category of one control point, it changes on all ropes. Also I saw in some threads, there is a property called "phase", but in my obirope version there is no "SetPhase" method. Is there a simple way to disable collisions between ropes that share same blueprint? Thanks in advance.