Reordering chunks in a trigger is a frustrating experience (usually when there are large statements). Statements will fly to the top of the modal with reckless abandon, but then refuse to move downwards no matter where I put my cursor. Then when they do move down, they move at a snail’s pace, and I better be paying attention when other statements pop up so I don’t miss accidentally putting it in the wrong spot, lest I have to send it flying back to the top to try again.
One thing we use in our apps for re-ordering is a simple Up / Down arrow set - click the thing, click the arrow, ???, profit. Not saying it needs to be done that way, but I’d much rather have to click an arrow a few times and know it’s going exactly where I intend it to go each time, even if it takes a couple clicks. Click and drag is great when things are small, so maybe just adding it as an option.