K2579 Trigger?

We are thinking about buying a couple of these. Can they use a momentary trigger, or do you need to use a latched ground trigger. I’m guessing momentary will be fine, but just need to be sure before I order them.

Also, is there anyway to use one switch instead of two for SW1 and SW2? We need to have it so that you’d push on the switch to start the timer, and then push on the same switch to reset it. Thanks.

Momentary trigger is fine.
Single button operation is not possible with this kit.

Does the trigger have to be momentary? (obviously sw1 would not be on when sw2 was switched, and vice versa…)

Yes