Is your feature request related to a problem? Please describe.
As a user studying for a master's degree in computer science, I often need to switch between several specific models frequently. It becomes frustrating to scroll through an extensive list of models every time I need to switch between them.

Describe the solution you'd like
I would like the ability to pin certain models to the top of the model selection dropdown. This would ensure that my frequently used models are easily accessible without the need to scroll through the entire list.

Describe alternatives you've considered
An alternative solution could be to introduce a "favorites" section within the dropdown where users can mark certain models as favorites and have them appear in a prioritized section at the top.

Additional context
This feature would significantly enhance the user experience for those who routinely work with multiple models, especially in academic settings where efficiency is crucial. Additionally, the pinned state could be saved in user preferences to maintain consistency across sessions.