 allow administrators to perform commonly used functions on a large group of selected users in a few clicks. To do so, logged in as administrator on the front page, go to the settings block, solid administration, users, accounts, BOP user actions. If you've got a very large user base, maybe maybe use for to show advanced and filter by given criteria and then select the users concerned rather than to the selection. And then with selected users, you can either confirm, send a message, delete, display in a page, download or force password change.