Props are any asset in a scene that is not an Actor. There are generally two kind of Props, Interactable Props and Non-Interactable Props.
Interactable Props are props that have had an additional degree of function added to them. From the [[Interaction Editor], a prop may have an Interaction Type applied to it that can customize a prop to its intended purpose.
Non-Interactable Props are used to create your map and layout what your scene will look like.
When a Prop is selected, the Properties view will detail the name of the prop along with data on its position in the scene. This is also where you will be able to access the Prop Interaction Editor.
Quick Start Guide 3 - Create an interactable terminal
Creating New Props - Creating new 2D props