Hi! Your use case sounds pretty similar to the one described in this thread:
You could set up a small REST API (e.g. using FastAPI) and post a request to it when the user submits their selected options in the very left sidebar. On the server, you can then call prodigy.serve to start a Prodigy session with the given arguments (data source etc.). If the request succeeds and the server has started, your dashboard can then load the Prodigy web app in the iframe.