1) Login to the web console and navigate to Settings > Recording & Blocking:
2) Make sure that Block Programs is set to "ON" and click settings to the right of block programs:
3) Click the "Schedule Profiles" tab. In the bottom of the window add a name of a schedule in the box to the right of "Add new" and click the "Add" button. Select a blocking period by selecting days and time frames to block application usage then click "Add new":
4) Select the "Block Programs By Time" tab select an application to block for the selected time profile from the resource list or add your own by typing in the name of the program in the search result box. Add the resource to the active list and the application will be blocked during the selected time profile schedule.