I suppose that most people find the existing field enough.
As far as adding this to ACF, you’d need to ask the developer https://www.advancedcustomfields.com/contact/
Here’s another option because most of the issue stems from needing to click on the + link when hovering over the field. Add an acf/render_field filter https://www.advancedcustomfields.com/resources/acf-render_field/. This solution depends on JQuery being loaded, which it should be.
What this does is to add a link below the field that when clicked will trigger the same action as clicking on the +. You can then style it as a button or whatever makes the most sense.
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