I would recommend to do not use GUI to operate docker containers, because you do not control how authors implemented their wrapper around the docker. Something can be broken or can even lead to disqualification (like it were with using of -v option instead of --mount, see Node disqualified...WHY? - #10 by BrightSilence)
After updating the STORAGE environment you need to re-create the container, to do so you need to stop and remove the container and create a new one with all your parameters include changed ones.
In CLI it’s easy to do