Admin console - Confirmation request

As a system administrator, I am requested to confirm any action that could be long lasting or impact performance
[CONFIRMATION-REQUIRED]

AC
When a confirmation is required, format is displayed as following:

"[EXPLANATION OF IMPACT]

This action will impact [NUMBER] documents.

If we have a reference point, add: "This action could take approximately [TIME IN HUMAN READABLE FORMAT]".

Continue?"

I can continue (performs action) or cancel (cancels action)

Time is defined in number of seconds using the formula: number of documents / [REFERENCE POINT].