X-Axis - Assign a column you want to show at X-Axis. You can assign any column with continuous values (number column).
Y-Axis - Assign a column you want to show at X-Axis. You can assign any column with continuous values (number column).
Color - Take a look at Color section for more details.
You can use the Custom Function feature to define your own aggregation function. See Custom Function for the detail.
Take a look at Layout Configuration on how to configure the layout and format.