@Geraldmbailey do you want to use only LEDs or solenoids + LEDs on one or multiple outputs?
I have recently designed a splitter which goes in place of the DC Adapter you clip on the solenoids. This splitter has a LED on it, to give indications to every solenoid. As well you can connect a LED Strip (24V) with that splitter.
If you connect LEDs / Strips at the same time with a solenoid on one output make sure to use a protection diode after the solenoid (search for flyback diode - the type i recomment is 1N4007).
In general you can use LEDs with different voltage needs - 12V or 24V and many other types - depending on how you make the connection / and what voltage you feed to the automat.
So much regarding the hardware side.
Regarding software i hope i will be able to make a special version for light control at some point. Happy for everyone who wants to work on this - as the software source is on github.
I can imagine some might be interested in brightness control with the velocity value.