Controls at the top right of the map:
The 4-headed arrow control lets you navigate around the map.
The question mark icon lets you interrogate the data - click on it and then on any data point to select it and see the corresponding record in the table below, or click and drag to select a set of data points:
The blue plus icon allows you to switch base layers on and off, to change between a satellite image and a street map, for example:
You can also use the controls on the left of the map to navigate and zoom.
Controls on the data grid:
Click on any record in the grid to see it highlighted in red on the map:
Filter the grid and the map by typing into the filter row at the top of the grid:
Click on the right-hand icon to view a record's details:
If it is your record, and you are logged in you will also see an icon which allows you to edit the record: