modelSpecs configuration / model-specific greetings

[rm-1997]

I am trying to implement a custom greeting (e.g. "I am gpt-4o - How can I help you?") per model/endpoint.
I think I should do this using modelSpecs. However, I do not get this to work.

The problems that occur:

• I cannot select "Agents" any more.
• The hierachy of the three dropdowns (endpoint, label, model) is somewhat odd. I do not want to add an additional layer that recreates the same logic as the simple endpoint structure for a second (unnecesary time).

Has someone implemented model-specific greetings and could share the corresponding librechat.yaml?