Release : 3.7
Component : IM Reporting / Admin / Configuration
Any other ability to control the sort order for this report would require submission of a new Enhancement Request via the Performance Management community Ideation options:
Also, note there is a defect impacting this ordering (DE464964) that is currently targeted for DX Netops Performance Management 3.7.15/20.2.2
Note that this is subject to change and there are no release dates that can be provided at this time.
A possible workaround would be to use view IM Device Multiview instead and lock the view to the desired group if needed.