extended characters or own "models"

openwebui has a concept of own defined model. user can select a base model, provide context?system message - even upload knowledge documents.

even something simpler would help
i defined a system prompt for qwen to be my language tutor, but i need to remember to switch it off when I want to do other stuff.
it would be very neat if I can have model called “qwen/koreantutor” to select from
or character where I can select model and it inherits all model capabilities (searching web, vision etc.)