This tag is used to define whether a library class is a regular library class (contains library items) or contains read-only models. You cannot save a library item to a library class for which <ReadOnlyModelLibraryClass> is set to true.

However, if you have a manually-created model which you want to use as a library item, you can change the class of the model and move the model to a library class for which <ReadOnlyModelLibraryClass> is set to true.

This example shows a valid configuration for the tag: