Resetの使い方例

TriggerEnabledBoxCollider.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[RequireComponent(typeof(Rigidbody))]
[RequireComponent(typeof(BoxCollider))]
public class TriggerEnabledBoxCollider : MonoBehaviour {

    #region MonoBehaviour
    void Reset()
    {
        var colllider = this.GetComponent<Collider>();
        if (colllider)
        {
            colllider.isTrigger = true;
        }
        var rigidbody = this.GetComponent<Rigidbody>();
        if (rigidbody)
        {
            rigidbody.useGravity = false;
        }
    }
    #endregion

}