About Node View Export
The Node view allows you to make advanced connections and isolate certain portions of your project. It also allows you to perform multiple exports from the entire node structure or from specific sections.
For this kind of process, use the Write node. The Write node lets you render and output the connected image information. Using the Write node, you can export a project as a QuickTime movie or as image sequences. You can export one format at a time or both simultaneously.