Support option to use user defined LLM resources. Many enterprises already have LLM's contextualized for their environment using RAG and other content guardrails so that when a prompt is used to create content that the content is not generalized, but is instead already optimized to create content for that enterprise ecosystem. This would speed up ability to create scripts that can be used with auto-generating tools for visuals. Perhaps this needs to implemented using MCP or similar given rise of agentic AI flows.