One of the most important methods of user interaction with XmdvTool is mouse operation. Here I list the main mouse events in XmdvTool.
Show the functions of the quick buttons in the message bar.
Pan the display.
Move the closest current brush edge to the current position.
Drag and drop the closest current brush edge to the current position.
Reshape the current brush to cover all the clicked data items and the data items covered in the dragged and dropped area. In Glyphs, clicking twice means non-click.
Please refer the "Structure-Based Brush" section in "Brushes Menu" help file.