Valuation by security domains is good for details but prevents a global view of the system.

For a global view, go to groupings:

Groupings screen is quite like screens for rating, but it is view-only:

On the top blue band, you may edit and select groupings. By default, there is always a group made up of every security domain:

On that group, little can be done.

The real interest is on your own groupings when you have many domains:

Now, users may select their groupings:

In the columns for maturity, doubts, etc., you may click to get a summary of the value on each domain. For instance: