Replace all List fields by This Magic Field
At this time, the filter of list field is based on first letter typed
A filter based on text present anywhere in the field should be Magic
Example see on the WEB :
https://jsfiddle.net/fKFJ5/11/
On the precited website, you can see a frame with the result
In the precited display, type ee and you will understand.
This is just as en example of the awaited result
With that Select a category in a ticket or a company; etc will be a real paradise
On my need, I would like see all values displayed in the list and ability to drop down it if no any data typed