When viewing a concern click on Send Alert To... on the right-hand side underneath Actions
This will pop up a box allowing you to select the colleague you would like to alert and send them a message:
Selecting the staff members field will allow you to select either user groups, or by clicking the + next to a user group, individual staff members within a user group:
If required you can then write a message to inform the users why they are receiving this alert. This message will be displayed in the email that is sent to them.
It is possible to redact elements of the concern when alerting other people this way.