If I understand your comments correctly, you're referring to the ability to select and edit multiple items at once - what we call bulk edit. Good news! Bulk edit is coming back because we know how important it is to all our customers. It’s at the very top of the Not Yet Available in Next Gen Expense document.
At this time, we’re not able to communicate anything regarding timelines for specific features and functionality. We do expect to be able to communicate some new information in concert with our user conference -Fusion- next month in Orlando. (Please come! We could meet in person.)
Currently, you can see all the improvements being made to the new UI including closed support cases -sometimes every two weeks- by viewing the Preview Period NextGen Expense release notes.
P. S. Great name. (That's how old I am: Raised on Creedence Clearwater Revival-years-old.)