File Open Dialogue
The file open dialogue will appear when the user initiates a file open command ( re. Viewing a Single Drawing ), or a batch print ( re. Printing a Batch of Drawings ).
When initiated for Printing a Batch of Drawings, use the standard Windows multi-selection keys ( Ctrl + Click for individual selection or Shift + click for a range ) to select a batch of drawings.
When initiated for Viewing a Single Drawing, the file open dialogue will only allow the selection of one file.