Mention (multiple selection)
In the Mention dialog box, you select a user or group that you want to mention in a feed post or comment.
Click the triangle icon to open the drop-down menu for selecting a user/group.
The selected user/group appears is added to the list. You can select multiple users/groups.
Remove: To remove the selected user/group from the list, click the X icon to the right of the corresponding user/group.
OK: Click OK to apply your selection.
Cancel: Click Cancel to cancel the action.