[Docs]: Improve Hover Help Coverage for IDL/ENVI Routines

[xpertforextradeinc]

Documentation Issue

• IDL or ENVI Hover-help Docs Bug or Missing Routine
• Typo
• Documentation Bug or Broken Link
• Feedback on Existing Topic
• Request for New Topic

Description

The current documentation for the VS Code IDL extension is missing clear coverage of hover-help for certain IDL/ENVI routines. When hovering over these routines in the editor, no contextual information or parameter details are displayed, which makes it harder for contributors and users to understand usage without switching to external references.

I'd like to request:

• Expanded hover-help entries for all core IDL and ENVI routines.
• Consistent formatting of parameter descriptions and return values.
• Links to related topics or examples within the docs.

This improvement would make the documentation more complete, user-friendly, and audit-ready, while reducing friction for both new and experienced users.

Additional Context

Example routines where hover-help is missing: ENVIRaster, ENVIROI, and certain IDLgr graphics objects.

Screenshots:

• Hovering over ENVIRaster currently shows no parameter details.
• Hovering over IDLgrSurface provides incomplete documentation.

Reference: The official IDL/ENVI documentation includes these routines, but they are not yet surfaced in the VS Code extension.

Suggestion: Align hover-help coverage with the official docs to ensure consistency and completeness.