Need guidance for using GameplayInteractions plugin

Hey, sorry if this doesn’t fit into this topic.
I need a guidance on how to set up the GameplayInteractions plugin for player. (Not AI)

I’m currently trying to make an interaction feature with object and player. For instance, Player trying to sitting on the bench. Right now, I’m testing with cube with Thirdperson template.

Right now, I’ve made a simple actor using Smart Object like this with simple SmartObject Definitions. (This is the target Actor that I want to interact with)


And for the State Tree, I’ve implemented like this:


However, I have no clue how I should start in this STT_Interaction. This STT_Interaction is based on StateTree Task Blueprint Base.

Any guidance is really appreciated.

Thanks in advance