I assume you tried to use the 00xx command like 0xy would work in pretty much all other trackers. The 00xx command is to be used in instrument programs only:
You need to make the instrument program use the arp notes you set with 10xy. Use the magic arpeggio command 00F0 to use the first (x) note and 00F1 to use the second note (y). These are called external arpeggio notes and in the instrument program they show as EXT0 and EXT1.
That is, in pattern you have 1047 (major chord), and in the instrument program you have 0000, 00F0 and 00F1 - followed by the jump instruction FF00. The result is the "standard" tritone arp cycling from triggered note (arp note 0), then to EXT0 (4) and then to EXT1 (7).
You also only to use the 10xy command need when you change the chord, you do not need that for every row as you do in most other trackers.