Customise Case Resolution in CRM 2016

Hi,

I know this issue has been mentioned a fair few tims in the past, but they are all quite old posts, and I was wondering if now with the latest version CRM2016 it may be possible to do something about it.

Essentially we need to customise the case resolution form that pops up when clicked from the tool bar. We need to drop a few fields and customise a few also. I can see there are a few older solutions, but if no new ones then which one would be the easiest to implement

Thanks again

Mark