F.ttp_begin({
 stn = "Origin Berton Street", -- station name
 tt = "CFE_N", -- timetable ID
 depint = "05;00", --departure slot interval
 depoff = "03;15", --departure slot offset
 doorside = "L",
 reverse = true,
 only_lines = {['CFE'] = true},
 force_tt_reset = false,
})