It is very easy to create your own repertory filters.
Your personal filters are configured in the Preferences, section Book.
To add a new filter, press the button 
.
Give the filter a meaningful name. This name will be added to the repertory filters under Menu / Book / Book selection.
By default, all authors are in the filter. To edit the list of authors, press the button Select authors.
Select the authors you want to allow in your filter. The most important authors are present in the list. To show all authors used in the repertory, uncheck the option Major authors only.
Below the list of authors, you can select a year range. Only sources published within the year range are included in the filter. The value 0 means the value is not used.
The other options for the filter do not need further explanation:
