Would be nice to set the placement of the plugin inside the screen, allowing to describe if we want the plugin on the top-left corner or even specific pixels.
The necessity of this it’s because when interacting with the plugin and doing a resize, the plugin can be out of the viewport, looking weird, or even not being visible to the users when is located at the left.
A way to reproduce this behavior would be doing a resize:
Move the plugin all that you can to the LEFT, and then call the resize to make it smaller
Now, the plugin is still open, but is not visible, and if you restart the plugin it will open on the same hidden X/Y position.