Replace arrow selectors with too many choices with a better selection menu

[Rami-Slicer]

They are good for situations where there are few options to choose from but some have way to many options
Here's an example from the dispenser object's settings:

The widget's options include every single badguy in the game and is annoying to use.

[Busybody64]

It could be more like the owl, I think.
It'd probably have to be converted for retrocompatability, tho, and it might break many old addons.

[mrkubax10]

This is about interface change so it doesn't have anything to compatibility.

[Alasdairbugs]

it could have a drop-down menu like there is for when you select tiles and it shows snow, snow background, etc.

[Alasdairbugs]

oh yeah this also goes for choosing path node easing