Delete sync markers

Title says it all…
I’m trying to delete sync markers from my skeleton. After retargeting a bunch of animations I now have 4 different sync markers for the same thing, like placing foot left, I got: L / LFoot / Left / LeftFoot and same for right foot. Would like to clean it up…

There was no other forum posts or threads on Unreal Slacker in regards to this, and the document doesn’t mention it, so here is hoping someone on here knows the answer!