Toggling CMS content from page

i am trying to create a simple booking site using the CMS. The site will allow users to ‘book’ items on loan and then return them once the loan period is completed. I have set up the assets that can be booked in a collection list called ‘Assets’, is it possible to have a toggle in the CMS that when activated by a button click, will remove the item from the list of available Assets and activate on the booked items (this will be an identical collection list to Assets but the items won’t be visible until booked)? Ideally I would like to do this without any custom code - if that route is not possible, could someone give me a few pointers on how to acheive this?
I would also like the items in the Asset collection to appear in a drop down menu - is this possible as I’ve yet to find a way to do this…??