Planner view is where you'll start when creating your branding style. Any images that are in this view will be exported with your style applied. Additionally, you can apply your style to a folder of images when you export, similar to batch processing in Photoshop.
Drag and Drop Images into Planner View
Select the desired group of images with your mouse (holding down the Shift key or the Command/Control key to select multiple images).
Once selected, drag all the images from the project you want to brand into the Planner View.