@Riya It's by design, the purpose of this page is to generate the SAS token/URI and copy them. if you selects the permissions which you want and clicks the button, then you can copy the SAS token/URI. If you refreshes the page, it will reset. there's no configuration to be saved here, just that token/URI to copy.
Try to provide access permission through storage explorer and check for the status
If you have any issue with configuring the design for form recognizer custom AI model , you need to contact forum recognizer team. they can provide more insight on designing. @YutongTie-MSFT or @romungi-MSFT
Please let us know if you have any further queries. I’m happy to assist you further.
Please do not forget to and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.