Layers in Intensify.
The Layers panel provides the ability to add multiple effects to your image. Every image will have a single layer to begin but can have up to 4 other layers for a total of 5 layers. Each layer that is added can have a separate effect, opacity and mask.
The Add New Layer (plus icon) and Remove Layer (subtraction icon) buttons will allow you to add new layers for new effects or to delete layer effects. Each layer has a visibility control (the eye icon) to turn on and off the effect of that layer on the whole image.
Double click the Layer name to add your own custom name.
Each layer also has an Opacity slider which controls the overall strength of the effect applied to your image. The Opacity slider in the Layers panel is the same slider that is available at the bottom of the Adjust Panel, so making an adjustment to one will be reflected on the other.
Each layer mask in Intensify will have an icon that will reflect any selective controls such as a gradient or brush, to apply the effect selectively to the image. Any part of the Layer Mask icon that is white will have the full effect applied, any part of the Layer Mask icon black will have none of the effect applied, and values of gray will have some of the effect applied.
Right click on a Layer to reveal even more options such as copy mask, invert mask, clear mask, etc.