You can add more in-built assets to WSO2 G-Reg other than the ones that are available by default in the main menu of the G-Reg Publisher as shown below.
For an example, you can remove the Endpoints asset type from the value of the
disabledAssets list in the
<G-REG_HOME>/repository/deployment/server/jaggeryapps/publisher/extensions/app/greg_publisher/app.js file as shown below.
After enabling the Endpoints asset type, once you log in to G-Reg Publisher you view it added to the main menu and the G-Reg Publisher Home Page as shown below.