F.ttp_begin({
 stn = "Namespace Mountains", -- station name
 tt = "DTLE1_S", -- timetable ID
 depint = "00;30", --departure slot interval
 depoff = "00;00", --departure slot offset
 doorside = "R",
 only_lines = { DTLE1 = true },
 force_tt_reset = false,
})