Splitting by Markers
The markers can be used to split the audio file into several separate ones. To do that set the markers to the necessary places (refer to the Setting Markers chapter) and click the Split File by Markers 
button on the Edit Tab.
The audio file will be divided into several ones that will begin and end at the points where the markers are placed. They will be named as File Name + the order number and put to the Files tab of the Files and Effects Panel:
After that you can edit each of the resulting files individually.