Rigidbody step offset

Greets. My next question is about my main character. It is a simple box. Sound easy, but character controller got only capsule collider. I read that i CANT change collider type. They recommend to use rigidbody. OK i made all movement, but when i try move on really little acclivity for example higher about 0.5f my box stop. Character controller will move forward cuz he have STEP OFFSET option. There is possibility to make that offset on rigidbody?

If you use a sphere collider with a RigidBody it will handle steps properly. You need the round bottom of the sphere collider to be able to go up steps.