Most still *DS3, but a few where the wider *DS4 makes more sense than folding rows, alternate views, multiple pages for the same record, etc. It's not just about what will fit; usability is more important than getting everything onto a display all at once. Sometimes two views, of whatever fashion, are better than trying to cram everything into a single page, regardless of whether it's *DS3 or *DS4.
Supported a JWalk application for many years. All display files had both *DS3 and *DS4. The *DS3 was always shown to 5250 devices, but for JWalk clients it used *DS4. The extra space on the right was used mainly to provide for some enhanced navigation. !--script--ing was used for some functions to convert multiple 5250 panels into a tabbed interface.
lots of legacy code. *DS3 ran rampant.
i used scan and replace (option 25) to change them to *DS4. only had to change a lot of the client access to allow greater than 80 columns.
of course.....you can't make everybody happy. re-wrote one of the systems to take advantage of /free, real RPGIV stuff like "qualified", etc. made their screen much wider, although the font was a bit smaller, so we stretched the screen.
"they" are upset because their displays are 15 flatscreens and they use a .pdf form to fill in the data on the screen. "they" have to move the client access window up and/or down to see the entire .pdf form.
we're getting them new displays........
The times I have tried *DS4, I ended up getting a lot of complaints from older workers complaining about not being able to read the text because it was too small. Usually ordered to change it back after that.