How can I widen the Column Styling rule box

[MsBindy]

Probably a ridiculous question,  but how can I widen the pop-up box when adding Column Styling rules?

I can't see the entire field name in my drop down list and there are many that are quite similar

[IraWatt]

If this isn't possible it would be a good idea for the Designer Ideas board: https://community.alteryx.com/t5/Alteryx-Designer-Ideas/idb-p/product-ideas