@ambit

There is an expansion port on the back to add more features. There will be at least one expansion in the future. Can't make any promises on what the features will be at this point.

A on/off switch for latching the incoming input on each channel, would be great on the expander. So you could bypass the "momentary" thing on each gate. I am still leaving 18HP reserved on my rack.

Keep working hard!! ^^