Layers are a list of all the elements in your scene. Each time you add something like a widget, video, audio, image, or guest a new corresponding layer will be added to the panel. Layers make it easy for you to see everything in your scene. They also make it easier for you to operate your event while live, instead of having to click into the scene and open a panel for each guest, widget, image, etc. You will simply have it all laid out for you in layers with the controls you need throughout the event.
Layer Settings
Each layer has the same set of settings that can be accessed by clicking the kabob menu to the right of each layer name.
Rename: change the name of your layer.
Duplicate: make a copy of your layer into the same scene.
Copy layer to... : make a copy of your layer to appear in a different scene. For example, maybe you want the same guest to appear in a new scene, or move a poll from one scene to another.
Delete: remove the layer thus removing the element.