Feature Request - Extend Page Configuration for ContentItemEdit

We would like to request the ability to extend the page configuration of the ContentItemEdit component (also the WebPageItemEdit). Specifically, we need to display custom callouts in the right-side column that provide complementary documentation for our editors.

Benefits:

1. Improved Editor Experience - By providing contextual documentation directly within the editing interface, editors can access guidance without leaving the page or switching between multiple resources, reducing friction and increasing productivity.
2. Reduced Training Time - New team members can onboard faster with in-context help and documentation readily available where they need it, decreasing the learning curve and support requests.
3. Consistency and Quality - Having editorial guidelines and best practices visible during content creation helps maintain content quality and ensures adherence to organizational standards across all contributors.

Note: Currently there is not possible to extend the page configuration of those two (using the latest version 30.11.0).

Environment

• Xperience by Kentico version: 30.11.0

• .NET version: 8

• Execution environment: Private cloud (Azure/AWS/Virtual machine)