The toolbar is an important component of the Dashboard page as it provides various options to deal with visualizations. The search bar is used to specify the search query or filters that are used to analyze a visualization. Whenever a search query is specified, it checks in all the documents and return the results of the search query. The existing visualizations are updated as per the search query results obtained. The toolbar consists of a search bar along with option buttons such as New Dashboard, Save Dashboard, Load Saved Dashboard, and Share and Add Visualization.
Let's understand the usage of the different options of the toolbar in detail.
New Dashboard provides the option to start adding visualizations to an empty dashboard. It empties the visualizations created and added to the dashboard. It also empties the current dashboard. This is done by clicking on the New Dashboard button 
which is situated on the toolbar, beside the search bar...