Here's a few tips on using the Microtech software. Very basic stuff but I couldn't find it in the help file.

Refer to picture below.
1. Tells you what screen your on. Screen 1-32 (there's no 3 thru 7, nor 9-16)
2. Click Mode or the "p" button to switch to edit mode. Graph will turn red and you can use the left/right arrows to move to the cell you want. The up/down will change the values. Click Mode or "p" again to go back to regular mode.
3. Up/ Down buttons allow you to go to the next / or previous screen.
4. These are the cells you can edit once you click on Mode.