The procedure to add alert filters is as follows.
Open the [Draft] tab on the navigation space, extract [Alert Filters] in [Data analysis], select the alert filter to add, and then click the [Edit] button at the bottom of the workspace.
Open the [Details] tab on the workspace.
Select the alert to add from the [Available] list of [Alerts(s)].
Click 
to move the alert to the [Selected] list.
Click the [Save] button in the bottom of the workspace, and save the definition of the modified alert filter.
Click the [Publish] button at the bottom of the workspace, and start the alert filter.
