How to detect as UCM Greenhorn the right Content Type Property Names for the Content Presenter

Rule #1

Build-In-Property begin always with d + Attribute in CamelCase

Sample: WebExtension = dWebExtension

Rule #2

Custom-Property begin always with x + Name of the Information Field from Configuration Manager [in CamelCase]

Sample: Comments = xComments

If you have Oracle Database Background and the development machine is yours, you can try following select statement to bring this information into you JDeveloper. 

select column_name,data_type from dba_tab_columnswhere table_name = 'REVISIONS' or table_name='DOCMETA'order by column_name;

Content Presenter Template

Additional Documentation

27.3.6 Using EL Expressions to Retrieve Content Item Information

27.3.7 Discovering Content Type Property Names