At the top of the window, select category source type: Tracks or Categories.
Tracks
Select the tracks for this category. This can be a playlist, a folder, a music database, a set of single tracks. Several different sources can be used.
You can use special tags (file name templates) in file names that the program will replace with corresponding values. Please see the file name templates section on the Event page. Use the ?noeval tag to prevent the template from being processed by the playlist generator (in this case, it will be processed during playlist playback). To enter template values, select an entry in the Tracks source list, press "..." button and select "Edit item" option.
Tracks can be selected randomly or in order. In the latter case, tracks in the source are sorted alphabetically. In the case of Random selection, the settings on the Priority tab determine how the selection occurs. If no priority rules are enabled, it will shuffle the list of tracks and try to select each one before repeating. The Random (fast) option can be used for categories with many tracks. In this case, the random selection will work a lot faster, but with slightly reduced quality.
Start position - sets the initial track position in the source. This track will be selected first when the "In order" option is enabled. This function is used to publish materials that consist of several parts (such as lectures). The "Advance on each generation" setting increases the starting position for the next playlist generation (so that the next part is used when a new playlist is created).
Categories
When the source type is set to Category, other categories are used as a track source. Several categories can be added as sources, each with a different weight. For each track selection, it will randomly select a category and get one track from it. Weight determines the probability of a category being selected; e.g., a category with a weight of 2 is twice as likely to be selected as one with a weight of 1.
Example:
Category A has weight = 1
Category B has weight = 2
That means Category B has twice the chance of being selected for the playlist as Category A. For example, if 100 tracks are selected, the result would have ~34 tracks from Category A and ~66 tracks from Category B.