Go & Return
The Go & Return test type is basically similar to the In-Line test, but is designed for a specific test type with only one photocell.
For example: place the photocell (which will be used as Start and Stop) at a certain distance from the wall and define the test as follows:
The athlete starts, crosses the photocell (which starts timing), touches the wall and crosses the same photocell again, which stops the time.
Of course it is possible to complete various 'laps' simply by increasing the number of impulses. Similarly to the In Line tests several go&back exercises can be created with a maximum time or by matching maximum time / number of impulses.