bapu
Etmos,
In the rare occurrence where I might do what you are saying I tend to finally combine those drum buses into a final drums bus. I then organize all my buses in the following way:
Master
Vox->Master
Instruments->Master
Drums Master->Instrumenst
Bass Master->Instruments
Guitars Master->Instruments
Keys Master->Instruments
FxMaster->Master
Then I resize my bus pane in TV to only show the above buses for mixing purposes
.... from here on out I'll refer to drums only but the same holds true for guitars, keys etc
Kick IN->Drums Master
Kick OUT->Drums Master
Kick SUB->Drums Master
SnareTop->Drums Master
SnareBottom->Drums Master
OH-Left->Drums Master
OH-Right->Drums Master
Drums Amb->Drums Master
Drums Verb->Drums Master
Snare Verb->Drums Master
etc....
Footnote: My workflow does not include using the CV. I'm a dedicated TV kind of guy. Many find that weird especially since I grew up using hardware consoles.
Hey Bapu
I do something very similar to this as well, at least in terms of having child busses that feed parent busses. My master bus is ultimately fed by a few busses (Drums, Vocals, Instruments, Bass), each of which may have one or more busses feeding those. For a simple project I may just have the top layer of busses, but for more complex projects I may have two or three layers in the hierarchy.
Even if a bus is somewhat redundant (typically the bass bus), I find that having a consistent organization makes it easy to navigate as well as solo busses at a particular "level". I'd certainly like to see a bus folder to group my busses in this manner of use.
Feature request, that I have been meaning to do for a while now, is on its way...