void summary_thread_build (SummaryView *summaryview);
void summary_unthread (SummaryView *summaryview);
+void summary_expand_threads (SummaryView *summaryview);
+void summary_collapse_threads (SummaryView *summaryview);
+
void summary_filter (SummaryView *summaryview);
void summary_filter_open (SummaryView *summaryview,
PrefsFilterType type);