Since you posted this APM request in the NPM forum, and this may attract some other NPM readers, I will respond and make sure my APM colleagues see that too.
This is an already opened feature request for NPM (45403, 45776)
You can also take a look at the recap tables down the middle of this page, this might help. Again, this is for NPM:
We'll be adding support for this (it's the Multi-Object Chart Resource) in the next release of APM so that monitors and components can be added as objects.