How can I manage custom portlet options on Content Pages?

Issue

• When deploying a custom portlet on a Widget page, several options will appear in the ellipsis menu:
  
  
  
• After placing the same portlet on a Content Page, those options will no longer appear.

Environment

• Liferay DXP 7.1
• Liferay DPX 7.2

Resolution

• Content Pages are especially conceived to publish pieces of stylish-able web contents (Fragments) and to provide a different experience both for content editors and web developers. The "traditional" portlet experience and functionalities have been going under a large refactoring. Please find some notable paths below:
  
  
• Configuration: The Configuration menu is accessible in edit mode on the Content Page itself:

1. Switch to Edit mode for the whole Content Page
2. Hover the mouse over the custom portlet deployed onto the page
3. Find the cog wheel on the right-handed side of the portlet, click on the icon
4. The Configuration option will now be available

• Preferences: The Preferences option, obtained on custom portlets deployed on Widget Pages through the javax.portlet.init-param.edit-template java property, is no longer available on Content Pages. Instead, you may use javax.portlet.init-param.config-template: a sample is available at: https://github.com/liferay/liferay-blade-samples/tree/7.2/gradle/apps/configuration-action. Once implemented, the preferences will be available as a separate tab under the Configuration menu.
  
  
• Permissions: Setting Permissions on individual widgets/portlets for Content Pages is a feature implemented only on Liferay DXP 7.3, therefore it won't be possible to find on 7.1 and 7.2. More details here: https://issues.liferay.com/browse/LPS-102583
  
  
• Look and Feel: For the Look and Feel section, please refer to this article: https://help.liferay.com/hc/en-us/articles/360040826792-I-cannot-configure-the-Look-and-Feel-of-widgets-on-the-Content-Page