TheStable/Assets/Prefabs/Chair/SeatedStationGraph.cs

using UdonSharp;
using UnityEngine;
using VRC.SDKBase;
using VRC.Udon;
using VRC.Udon.Wrapper.Modules;

public class SeatedStationGraph : UdonSharpBehaviour
{
    public override void Interact()
    {
        Networking.LocalPlayer.UseAttachedStation();
    }

    public override void OnStationEntered(VRCPlayerApi player)
    {
        RequestSerialization();
        Debug.Log(string.Format("{0} Entered", player.displayName));
        
        base.OnStationEntered(player);
    }

    public override void OnStationExited(VRCPlayerApi player)
    {
        RequestSerialization();
        Debug.Log(string.Format("{0} Exited", player.displayName));
        
        base.OnStationExited(player);
    }
}