[Idea] Investigate creating a picker for Related Applications/Products/etc.

[andreituicu]

Investigate and if possibly implement a picker that helps authors generate the Related Applications/Products/etc. Metadata fields.

This would be implemented as either sidekick extension (ideally), or if that's not possible could be a separate page in the website, not linked or indexed (drafts folder, maybe?)

The picker would:

• Give an option to select between Applications, Products, etc.
• List the selected type of pages with their identifiers
• Users would be able to select the items they need from the list
• Then the page generates the Related field (identifiers of the selected sources, comma separated with space)
• The user can then copy to clipboard and add it into the word document (for pages) or xcel sheet (for files)