The Edge tool keeps track of the misses in a row for groups starting from 1 and going to 36.
Example:
In the settings, we set Group Size 4 to highlight when it misses between 1 and 5 times in a row.
This means that when the number 4 highlights on the board, we bet on 1,2,3,4, and the zeros, every time the number 4 is highlighted.
When the misses in a row go above 5, then the number will not be highlighted and the bets stop.
Example 2:
In the settings, we set Group Size 7 to highlight when it misses between 9 and 10 times in a row.
This means the group 1,2,3,4,5,6,7 missed between 9 and 10 times in a row when the number 7 highlights on the board.
When number 7 highlights, bet on 1,2,3,4,5,6,7 and the zeros.
Tip:
Let's say 15 highlights, you can set 12 chips on dozen 1, then 1 chip on 13,14,15 and the zeros to save time, instead of placing a chip on each of the numbers 1-12.