PRIMER 22.1

Mouse and Keyboard Usage for Screen-Menu Interface

Most screen-menu operations are driven with the left mouse button only, but there are exceptions:

"Popup" menus are invoked with the right mouse button; those in the Top menus, Tools and Keywords areas can also be invoked with the left mouse button.
Text in the dialogue area and text boxes requires keyboard entry;
Text strings saved in the cursor "cut" buffer may be "pasted" into dialogue areas and text boxes using the middle mouse button.
Dynamic viewing (<meta key> + <mouse button>) uses the three mouse buttons to distinguish different modes. Section 9 describes viewing.
Some specialist functions use different mouse buttons for particular functions.
Screen-picking uses:
Left button to select;
Middle button to reject most recent selection
Right button to reject what is under the cursor.
See also section on Quick Pick