
The 4 video tracks are ordered in overlapping layers (A, B, C and D.) Layer A is in the foreground, layer B is 2nd in line, and so on. The red LEDs of the 4*4 matrix make it very easy to identify the order of the 4 layered tracks.

1st example: Initial state
In its initial state, track n°1 is in front of track two which is in turn in front of number 3 and that in front of track 4.

2nd example:
In the following example, track 2 is in front of track 3, and that one in front of track 4 and that in front of number 1.

Two modes are available for changing the order of tracks:
1st Mode :
This mode consists of shifting all of the video tracks. Just press the button on the matrix 4*4 system that corresponds to the track you wish to change. The other tracks will automatically be reordered.
In the following example, we want to position track 1 on the last layer (Layer D). Just press the button Layer D / Track 1. Track 1 is then placed last in line and all the other tracks shift onto the superior layers.

2nd Mode :
This mode is perfectly adapted to switching quickly between two layers. Press down and hold the two red button relating to the tracks you wish to manage. The 2 tracks are then swapped. Then release the buttons.
In the following example, we want to swap position of tracks 1 and 4. So press the button 1/A, and the 4/D button.
