POM 16 confusion

I’m wrestling with the POM 16 can’t seem to wrap my head around how the programming file structure works. i. e. Does a “Track” contain “Slots” or vice versa? When the only interface is reduced to 2 led’s and a printed membrane switch it’s pretty frustrating trying to figure out what the heck is going on. Can anyone point me to a less vague set of instructions than what comes with the unit?