I find it difficult to add properties to a component. I find I need to move my mouse around a bit to finally show the + symbol and line to add a new property, only to have it disappear again due to my poor “mousemanship”.
If I’m adding 1 or 2 it’s useable, but any more than that and it becomes frustrating and cumbersome. If it would show any time the cursor moves between properties, not just under certain conditions, it would be far less frustrating.