Here is another video of me creating a layout using our latest M3 JUN 2017 MAIN KIT. In this video I use layer mask a lot. I hope you try it out!! If you are not sure of anything , just ask and I will try my best to explain. What is layer mask? You can add a mask to a layer and use the mask to hide portions of the layer and reveal the layers below. Masking layers is a valuable compositing technique for combining multiple photos into a single image or for removing a person or object from a photo.