Timelapse feature - have layers that can be not exported (such as a background)

with the new Photoshop timelapse beta feature (there is no feedback section for it) .. ,be great if it could  be set to not record the background layer - so if you are painting on top of an existing image and you don’t want the original to be seen in the output, it would be great if that layer was not recorded in the steps and export.