Vermont Views for PCDOS can function with one, two and three button mice. Terminal versions of Vermont Views do not support the mouse. Most functions, except help activation, are initiated by the left button. Help is activated by the right button. The three types of mouse actions that the user can perform are as follows:
| Click | Pressing and releasing the button without moving the mouse while the button is depressed is considered a click. Actions associated with the click take place when the mouse button is depressed; the up operation is ignored. |
| Double Click | A double click consists of two rapid clicks at the same position. There is a time limit within which these two clicks must occur for the mouse handler to detect a double click and not interpret them as two single clicks. |
| Drag Operation | Depressing the mouse button while simultaneously moving the mouse is considered a drag operation. Dragging is used to perform an interactive function, such as dragging or re-sizing a window. When the button is released, the new size or position is accepted. |
