1. From the Network menu, choose Time-varying attributes.
The Time-varying attributes window opens.
2. Click the 
Create button.
The Create time-varying attribute window opens.
3. In the Network object list, select the network object type for which you want to create a time-varying attribute.
4. In the Attribute list, select the attribute for which you want to specify time-varying values.
5. Confirm with OK.
The attribute is created. In the next step, you enter the duration of the deviating value and enter the value that shall apply during the specified time (Entering and editing time-varying data for time-varying attributes).
