I would like to see the Query input field widened. Currently is hard to see what the query is without opening it. Especially when looking through multiple expression fields it would be great if I didn’t have to open every single one to see the query.

My suggestion would be to put Calculated field on it's own tab page, then making the field as wide as two groups together, so probably the Field width would be 660. Then also changing the height to 8 or so.
For example:
