Spawn emitter attached on paper2d socket

Hello friends.

I`m trying to create a slice effect at my player axe when attacking. This project in Paper2d and I’m trying to use one slice effect bought on marketplace.

The problem is: I can’t get this emitter be attached on sprite socket of the axe.

I’m trying to use the Spawn Emitter Attached (http://api.unrealengine.com/INT/BlueprintAPI/Effects/Components/ParticleSystem/SpawnEmitterAttached/index.html) to reproduce this.

I just can’t get spriter socket name…I’ve tried to put this socket into the Print event on screen but without success.

Someone knows how can I reproduce this slide effect using a particle emitter in my paper2d project?

Thank you, best regards.

anybody? =/