normally the process is to name the group what you want to type to activate it.. it's ok if alias groups have the same "name" -- which i can see is a bit confusing.
either way, the best solution now would be to name the group "admin" and type "admin" to see all the entries in that group, or "admin ping" to filter to just ping.
so in general the way to do it in farr if you want to be able to just type ping, is to create an alias named ping.
BUT
i recall that we had this discussion at one point, and i may have already added a way to do what you want, i just cant remember.. if not, i can add something somewhere that can be used to tell farr that the contents of certain alias should be checked against as if each one was an individual alias no matter what user types.