If you want to search for packages originating from one particular software repository, use the
filter. In the default configuration, this filter shows a list of all packages from the selected installation source. To restrict the list, use a secondary filter.To view a list of the all installed packages from the selected repository, select the filter
then select from list and deactivate all check boxes except .If you are interested in the opposite and want to detect packages not belonging to any repository, also use the
filter and select as the .