Evelyn Korff (a former Pfaff software teacher for 6 1/2 years  Phoenix, AZ) 
<EKORFF@aol.com> explains how you can change built-in stitches without 
use of the PC Designer software by using ROM and RAM in your Pfaff sewing machine.

USING ROM ON THE MACHINE
(For creating many new stitches and more lengths and widths)

You can get to ROM on your machine by:
1. Select an empty P memory
2. On this screen you can select ROM by pressing key #4 under ROM
3.At Pattern No.  put in any 9 mm stitch the machine has ( a few are not
     accepted)
4. Press the #2 key under "mem"
5. Press the #8 key to highlight the stitch points
6. You can trace the stitches with the blue arrow keys.  The numbers in the
   right corner are.... the stitch no. within the design where the cursor cross
   bar is placed, and the coordinates of that stitch as it would be on the
   computer in the 9mm work area.  The left no. is x and the y is the one to the
   right.
7.Only end stitches can be removed...one at a time.
8. You can not add stitches in ROM
9. Always edit off the end, if desired, before changing the length
10. You can only mirror in the sewing screen (not in edit)
11.Many new stitches can be made in ROM.  You can get many new lengths are
     widths.  You can get tiny hemstitches for example.  Try the utility stitches
      and check out the lengths and widths.
12. If you send a ROM to the card, when you bring it up it will have reverted
      to the length and width that is on the machine.  It is sometimes faster to go
     to ROM on the machine and make the change, than if you needed to boot up your
     computer to do the same.

About Using RAM

RAM in the machine is like "copy" on the computer.

You select an empty P memory that you want to put your "copy" in
This gives you the screen to select ROM or RAM

The #5 key takes you to RAM..... which is a screen of your P memories.

Choose a stitch in the P memories that you want a copy of and press the key
number under it. You will have the design in a screen  that is still in ROM.

By learning what can be done in the ROM screens you have expanded abilities at
your machine.

The "copy" (RAM) just gives you a chance to go get the original and start
again or you have an edited copy.....another stitch design