Hi @lasinludwig,
You can use URL parameters to share and save the state of your application/options. Parameters stays in your browser history and is easy to share the options.
If the URL of your application is site.com/?id=123, you can get the id information and set in id option directly as 123.
You can use st.experimental_get_query_params to get the parameters of the URL and st.experimental_set_query_params to pass the data to the URL.
Some useful links that helped me to use this feature: