how to create a specific user defined asset group

I want to create a user defined group with group rules that will take all assets (servers, operating systems, ldoms, globalzones, localzones, etc) that starts with a certain prefix.

the rule: hostname starts with abc

this gives me all the OS instances

But I also need the equivalent to add servers, chassis, etc to the same group

I was wondering if anyone out there has done something like this?