First we need to create a new layer, this is similar to uploading data, however we will choose to create an empty layer instead. In this example we will choose to make a point layer
Give your layer a name and choose a default style and preview map location, and save your layer.
Next Make a Map and add the layer to the map
Click the edit icon next to the layer's name
The drawing tools will now appear on the right side of the map. To draw a new point click the point icon, then click on a location on the map.
Edit the attributes for the new point
Click the save button to save your edits
Exit the editing interface when you are finished adding data