Hi,
You can get the "ugui proxy full" from the
Ecosystemor to send an event you can do this :
on the "button component" @ the 'On Click ()' click on +
Then below "Runtime Only" drop in the game object with the fsm that you want to send an event to.
Then Click on "No Function" and select 'PlayMaker FSM/Send Event.
The Below that, place the event name that you want to send.