The layer management buttons are located on the top right corner of the window. The layer is initialized with default values. To Delete the current layer. You cannot delete a layer if it's the only layer of the program. Import Create a new layer using the data in the clipboard, if there is any.
Export Copy the current layer's data to the clipboard.
The clipboard holds only one layer. When you push this button, the current layer in the clipboard, if there is any, will be overwritten. Editing Envelopes Push the Envelopes button on the main program window to pop up the envelope page. The envctl portion of this window operates in the usual manner. Each of the 3 envelopes is represented by a line graph and the Data table below the graph.