You set the basic values (e.g numbers to generate, highest number to choose from, whether you want to generate a single row or system row).
When you hit "GENERATE" the app generates the rows according to your settings.

If you have generated system rows the app shows how many rows the system contain.

Additional features:
- "Reuse numbers": Rows like 4 7 1 1 possible
- "Start=0": Rows like 0 8 1 5 possible
- Reduce system function:
If the correct numbers are all found within the system, the reduced system rows generated guarantees that at least one row will match at least correct numbers - 1. (System for extra numbers is not reduced)
The function is limited to systems of less than 14 numbers with less than 1700 combinations in the original system.