To load a document and start acquiring data using the settings of that document, select File - Open from the main menu and select the desired document file. This will stop any existing document running, load the new document, and start acquisition under the new parameters.
Documents created in different versions (Pro vs. Base) are compatible, however, when downgrading, not all the features of the document may be available.
Note: Depending on the complexity of an already running document, it may take a short amount of time to shut down that document, load the new document and start it up.