Mirror

Activate this option if you want the selection to be mirrored in the direction of the loop with each repetition (see figure on left).

Repeat Count[-1..2147483647]

Enter the number of selection repetitions here (see figure at center).

Margin[0..2147483647]

Here you can define a distance in polygons between the selection repetitions. At 0, the selections will be joined directly (see figure at top-left).