[Feature]: Add a custom model button option rather than list

[acxlnxblds123-lgtm]

Area

Desktop experience

User problem

Nobody want to have 3 diff version of the same 20gb file

Desired outcome

a custom model button or easy ability to link with Hermes or other harness

Alternatives considered

No response

Compatibility and security implications

No response

Validation approach

No response

Confirmations

• I searched existing issues for duplicates.
• I agree to follow the Code of Conduct.