The closest solution I’ve found so far (by digging through engine source) is add an separate “anim notifies weight” property to UAnimMontage then pass it to FAnimMontageInstance. Then I could make the weights of all my montage events lower than the notifies weight but the weights of my anim seq events higher than the property so that all seq events would be filtered out.
Right now the FAnimMontageInstance.NotifyWeight is tied to anim blend weight.
Is there still an option which does not require engine change?