Management tab

This manages index patterns, saved objects. The advanced settings can tweak some points, especially visualizations. 

Index Patterns sub-tab

Displays details of selected index patterns (screenshot shows logstash-*). 

Saved Objects sub-tab

Displays Edit Saved Objects. To modify, click name on list. 

Advanced Settings sub-tab

Settings can be directly edited here (admin privileges required). Carefully read the Caution statement, especially for the size of the history of saved search queries.