Form with deletion and reordering

Hello, I am curious as to how one would create something like what I
have in this screenshot mockup:

https://www.evernote.com/shard/s309/sh/64b918bd-9429-41dd-85a8-00fc3d502721/498cb0bd5e18b6622ef8767f1c4d194f/deep/0/Creately---Draw,-Share,-Validate-and-Export-diagram.png

1. The goal is to enter a single FormRow at a time. Each FormRow gets
added to a FormRowListForm.
2. This FormRowListForm can be reordered by dragging with a mouse.
3. Rows can be removed by clicking on the "Remove Row"
button.
4. The FormRowListForm can be commited to database by
clicking "Commit Form Rows to Database"