Dashboard group within a group

Hi, we'd like to have several dashboards for our clients. We currently have several dashboard groups for our clients and want to make more dashboards but also to separate these dashboards, such as a this structure - 

-Acme
--Summary
--Hosts
--Guests
--Servers
---Windows DCs
---Exchange Servers
---General Servers

------etc....

I understand the option to have dashboard groups within groups is not a feature - is this on the agenda?

Many thanks,

Toby