You may create a new feature to add on the selected feature layer from the Feature Layer Selector by using the Create Feature command.

How to Create Features

1. Select the Create Feature  command on the Feature Edit Tab. Select the layer you wish to edit with the Feature Layer Selector if you haven't already (if needed, you can use the Create Feature Layer tool to create a new layer).

2. Left-click within the map window to begin your feature and then left-click to place the vertices of your feature. A point feature is finished as soon as you left-click the point location. In the Map Window, hold down SHIFT while editing to enable panning with the right mouse button and zooming with the left mouse button (or scroll wheel). Digitize points in a clockwise direction to create a polygon feature. Digitizing counterclockwise will create a hole. Read Why Direction Matters when Digitizing Polygons in LP360.

3. Double click to place the last vertex and finish the feature.