Draw Modes
Choose between different draw modes to paint in your structure. You can also switch to 3D rendering to see and control the changes made.
For Draw Mode Continuous, press the left mouse button while dragging the mouse. As long as the mouse button is pressed you see a preview of the painted object. Release the mouse button to add it to the structure.
Use Draw Mode Single Click by clicking the left mouse button in different locations of the 2D view of the structure model. The effects of editing (in 2D view) are observed as soon as the left mouse button is released.
Use Draw Mode Straight Line by clicking the left mouse button and drawing the line to the desired end point while holding the mouse button clicked.