Auto saving a dropdown selection in a collection list? - I'm lost!

Can this be done? Below the chart I want the user to be able to select an option e.g. completed and it is auto saved . So if I left the page and came back it would still say completed.

I have messed around with stuff and to be honest I’m lost!!!

I then want to show this in a simple graph.

https://preview.webflow.com/preview/valuestoryexample?utm_medium=preview_link&utm_source=designer&utm_content=valuestoryexample&preview=52380a0623b8befead9499988b11541e&pageId=5f50c81ada9adb237f5dd6f7&mode=preview


Here is my site Read-Only: LINK
(how to share your site Read-Only link)

Any direction on this greatly appreciated please?!

Thanks