Use Comp to blend two inputs and their mattes. The type of composition is determined by the selected blending mode.
To access the Comp menu, use:
Batch, then select a node from the Node bin.
Timeline, then use Batch FX (see Creating Batch FX).
Timeline, then add Timeline FX from the Effects ribbon (see Adding Timeline FX).
Tools, then select from the menu (See Accessing Tools).
The Timeline FX pipeline uses:
This node accepts:
This node outputs a result and an output matte.