System Configuration : I/O Setup : Creating New Sub-Paths

Creating New Sub-Paths
You can create sub-paths for main paths in the Input, Bus, and Insert pages of the I/O Setup.
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You cannot create sub-paths for outputs in the Outputs page of IO Setups. You can, however create overlapping output paths.
To create a new sub-path:
1 Select the page of the I/O Setup where you want to create sub-paths (such as the Input page).
2 Select the Main path for which you want to create sub-paths.
3 Click New Sub-Path.
4 Name the new sub-path.
5 Select the Format for the new sub-path (such as Mono).
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With Pro Tools|HD systems, to optimize DSP resources, it is best to create mono sub-paths for output busses and internal mix busses, rather than mono main paths.
6 Click in the Grid to assign the new sub-path channels to available main path channels.