To create a task that is targeted to a filter, you must first create a "Client" type filter.
When you are creating a task, you are presented with the "Target Clients Queue" panel to select which clients should be targeted. To target a filter, select the filter from the pull-down menu and click Go
and then click the Add Filter
button. Now any clients that are selected by that filter in the future are targeted for this task, after the filter is synchronized.
Parent topic: Using filters: XPD621