You can quickly import data from your Presto into Exploratory.
First, you want to create a connection for Presto.
After filling the database information, click ‘Test Connection’ button to make sure the information is correct, before you save it.
Select 'Import Database Data' from Add New Data Frame menu.
Click Presto to select.
Click "Get Data" button to see the data back from your Presto.
If it looks ok, then you can click 'Import' to import the data into Exploratory.