Orphans
Orphans is a special system module. It does not reside within your main model, and is not saved with your model. It's content is cleared when you close your model and open a new model.
Placing stuff in Orphans can sometimes be useful when you want volatile information in memory, but don't want that information to be saved when you save your model. Sometimes special libraries might be loaded into Orphans for this reason. An example is the ACP Style Library which you can access when using ACP. ACP loads the library into Orphans so that you can use the library without it being added to your model.
See also
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