Draggable, resizable popups, that can optionally auto-fit to content width and/or height. I know it's not coming to 3.x so I created this for 4.x specifically.
I have created moveable popups for JS API 4.x. Example: https://codepen.io/kevinsagis/full/bGpdQQq
It hides the callout on move with CSS; and is moveable via titlebar. Last thing to do still is implement a leader line that follows it like a callout. Using jQuery which is still awesome in 2020!
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