Hello Laurent!
The Content Manager System Dashboard is available, but it does not provide the level of detail you are looking for. The ECM System Dashboard is provided in order to ensure that ECM licensing remains in compliance.
The type of metrics you're looking for are not available through any CM tool that I am aware of. You may be able to gather such metrics using SQL commands, but those are not provided out of the box, either.
Regards,
Eric Schmidt
Content Manager Enterprise Edition Level 2 Support
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Eric Schmidt
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