Block Treadling Load Functions - allow you to select the treadlings for 
                                      each of the block treadling units.

Process - 1. Enter or Load Block Treadling ( can be saved)
          2. Choose this function 
          3. Make or Load a treadling for each block unit. 
          4. Click on CONVERT to substitute treadlings for units.
          5. Click on FINISHED and the treadling or Short Draft Treadling
              can be saved.
 Note : The treadling file names will be saved with the 
        Short Draft Treadling ( if selected).
      : The CONVERT gadget works only when all treadlings selected.

UNIT - Letters represent the treadling unit in the Short Draft.
DONE - An X is displayed when the treadling unit is in memory.
MAKE - Click on symbol to make the treadling for the unit.
LOAD - Click on symbol to load the treadling from your disk.
FILE NAME - Displays the file name if treadling has been loaded.
ROWS      - Displays the number of ROWS in the selected treadling.