community 
Ability to auto-install "Certified Shells"
Inside of the 'Shells' Section of the Management Tab, having a button that would automatically load/update all of the current Certified Shells would be helpful. The complete list could be maintained on a specific GitHub Page (well probably a page per CloudShell Version) with the relevant links to the correct versions of the certified shells.
This would aid in the initial installation process by bringing in the most relevant Shells. Now some exceptions here would be made, namely for L1 Shells which follow a different installation process. But having an 'easy button' that would install all of the Cisco, Arista, Juniper, et al, Shells is helpful.
Having a Shell available but not used is a very minor burred on the system.
This of course would not work in an off-line mode, but then being able to go to a GitHub Page which listed the certified shells that work with your version of CloudShell, that too is helpful for the installation process.
