If the Collection Explorer is not displayed, select the Collection Explorer menu item from the Window menu.
If necessary, click on the Collection Explorer tab to bring the Collections Explorer to the front.

Navigate to the collection of interest. If necessary, expand a collection group (Places/Organizations/Persons, General, etc.) by clicking on the group's + icon. Then, select a collection within the group by clicking on it (it should now be highlighted).

A few collections - such as Part Types, Document Types and Change Forms - have properties that are shared by all members. You can manage the collection's shared properties window by selecting Properties... from the context menu.
You can display individual members of the collection by clicking on the collection's + icon, or select Show Members from the context menu.
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