If you want to add a frame to the marker as a document, click the Insert menu and select Add a Document to Marker. You will see this small window.

You can enter the name for this frame to be saved as and click the OK button. To see if the frame is successfully saved, click the Insert menu and select Marker.
As you can see, the frame is saved as document in Marker. When you convert this project into document formats, you can select “Document” under the Marker section so you can create a document with the frame we just saved.
