Some information, such as properties and item descriptors, are marked as expert (i.e. expert=true) so that they are not displayed in the ACC unless you are an expert user.

For example:

<property name="type" data-type="enumerated" expert="true"/>

To display expert-level information in the ACC go to Tools > Preferences and select the "Show expert-level information" box.

Note that this is not a "sticky" preference, i.e. you have to set it every time you restart the ACC.