Procedural Compositing with Batch > Batch Overview > Batch Node Bins >
I/O Bin

Use the nodes in the I/O bin to load clips into Batch or to output processed clips.

Use the node... | To...
--- | ---
Desk | Load clips directly from a Desktop reel.
Library | Load clips from local or remote libraries.
Import | Import clips in supported format from locations accessible in the local filesystem. Does not support multi-channel, .precomp, or Gateway clips.
Gateway Import | Import clips in any supported formats from any available location. Best node to handle multi-channel clips such OpenEXR, metadata rich clips such as RED clips. Only node to use when importing Gateway clips.
Output | Output clips to the Desktop or a library; metadata such as clip history and timecode is kept.
Export | Export image sequences in any supported format; metadata can be kept if exported as a Gateway clip (.clip files). Includes support for versioning.

The I/O bin also contains a MUX node. The MUX node is a schematic tool that helps create cleaner schematics by allowing you to have multiple outputs from one input. It incorporates the hiding of connections to prevent schematic connection overlaps.

You cannot customize the I/O bin.