Sporadic Frame
Creating Sporadic Frames:
To create Sporadic frame right click on the Sporadic Frame element in the element view and click on popup menu ‘New’.‘Create Sporadic Frame’ dialog is as shown below.

General Properties: Name: Name of the frame which should be follow C identifier rules and should be unique. Associating Frames: Check the Unconditional frames to be mapped to the Sporadic frame from the Associated Frames list.
To save the changes click on ‘OK’ button. Errors are displayed if validation fails.
The following validations are performed: Frame name will be checked for its uniqueness
To discard the changes click on ‘Cancel’ button.
Editing Sporadic Frames:
To edit existing Sporadic Frame right click on the Sporadic frame item in the Element view and click on ‘Edit’. ‘Edit Sporadic Frame’ dialog is displayed as shown below.
Deleting Sporadic Frame:
To delete Sporadic Frame, right click on the Sporadic item in the Element view and click on the popup menu ‘Delete’. A confirmation message will be displayed before deleting the frame.
Authoritative source: BUSMASTER DITA help source LIN_Editor_SporadicFrame.dita, compiled into BUSMASTER.CHM with the application.