Yes this is possible but you will need to setup scheduled tasks for it.
First if you have not already done so navigate to <casip>/DiagConsole#/userprops?filter=DMI_CUSTOM_TIME_PREDEFS
and add 8h to the list
Then create your DMI report and select last 8 hours and save it with that selected.
Then create you tasks by following https://community.dynatrace.com/community/display/...
You need a separate task for each (10, 2 and 5)