sliding character selection menu

hello, so I created a character selection menu with 3 characters and when you click on the character it chooses it and loads it into the game scene but i want to make my character selection menu interactable by allowing the user to slide through the characters and select their character. i tried using the dragRigidBody.js but it doesnt work. i would like for the character in the middle of the screen to appear closer to the camera than the other characters so the user knows which is the character he is selecting. Is there any way i could do this? thank you!