I write several times about this problem, and understand that you have your roadmap of developing but...

In subforms, we can't control width of fields. Sometimes it's critical - for example, lookups fields, when displaying text is wide. It's very hard to find your value, especally when values a very similar in start.

Some time ago, we have ability to use some css tricks and use "notes" field in form with this SubForm where I write something like this:

<style>

div[...some css selector to select div of narrow lookup field.....] {width: 999px !important} 

</style>

And I get WIDE lookup field

Not it doesn't work:

1. In HTML notes you cut all unusuall css selectors (in Live mode)

2. You use element.style to set the width of element and it's impossible to override it by another  css rules

Please, do something to give back ability of controling width of lookup subforms

Thanks