suggestions for UI

Hi,

I'd like to raise for discussion several suggestions for the UI.
Please see attached screenshot.

Suggestion 1:
The part that is marked in red disappears every time a user presses some option ( system
services, storage, networking, etc.)
Hence, if user selected category A (let's say storage), and now needs to work on
category B (let's say Journal), there's a need to go through clicking in top nav
menu on the server (which is a bit not intuitive because the user is already working in
the "context" of this server anyway) in order to make the left menu appear, and
only then selecting section B.
Hence - 2 actions (top click and left click) in order to manage different things in a same
server.

I'd like to suggest to make this menu on the left "static" - always
visible.
This way the navigation is much easier, the user always sees it and switching categories
requires only one click.

Suggestion 2:
Some categories seem to have few options, and hold basic and general info about the system
(for example - "system information" and "shutdown and reboot").
Perhaps they can be merged into fewer categories, or/and be visible in the main view
without the need to explicitly navigate to?  Currently this view contains 4 graphs and has
plenty of free space anyway.
(I mean here the same view that is present in the screenshot attached). 

Thank you.

Alissa