Version 1.9
Next key
The Next key can be used to step through the fixtures.
If you don't have a selection of fixtures, it will start with the fixture with the lowest fixture ID. With each press it'll select the next fixture.
If you have a selection of fixtures, then it will step through the selection (in the selection order).
If you have used one of the MAtricks macros to select some of the fixtures in a total selection, then you can select the other part of your selection using the Next key.
The Prev key will take you backwards through the fixtures. The Set key will reselect all fixtures.