The Management application is where you perform your runtime configuration of Kibana, including both the initial setup and ongoing configuration of index patterns, advanced settings that tweak the behaviors of Kibana itself, and the various "objects" that you can save throughout Kibana such as searches, visualizations, and dashboards.

This section is pluginable, so in addition to the out of the box capabitilies, packs such as X-Pack can add additional management capabilities to Kibana.