To repeat notches, select Feature pattern from the drop-down list of Circular Pattern and choose the Extrude (the first notch) from Features list as Feature to Pattern. Select any circle with same center as the Axis of pattern to create “Instance count” number of copies of the first notch.
You can use it to create slots on wall, or replicate towers in the 4 corners. Select Part or Feature pattern to repeat, and a line along which to create the pattern (Direction). Distance is the gap between the patterns and count is the number of replications. You can select Second direction to create pattern in rectangular grid (placement of towers).
Click variable icon, give it a name and a value
You can use them in places where you can enter numerical values
Double click the variable on Feature list and update the value
By changing the value of slot width and slot distance we can change the property of the entire wall