I suspect you´re talking about flying SIN
and continuing TOD
with the same aircraft ...
If that´s the case:
I´ve done it myself (albeit in the opposite direction) and I´ve found out that I´m not the first one to do that ...
So, no problem !
But I strongly recommend to notify Berjaya Air about your intention !!!
It is not possible to book SIN
on one ticket. You need to buy two separate tickets !
But again you will be fine provided you notify Berjaya Air staff at latest upon check-in at SIN
so they can notify their colleages at TOD
about the " transiting passenger" - important because Berjaya Air does not offer online check-in and you will arrive at TOD
too late for (official) check-in deadline. So, the staff needs to know you´re on the inbound from SIN
and they´ll have your boarding pass ready.
Just as a note:
Personally I´d rather do the routing in the opposite direction - if possible schedule wise - because you´d have the advantage of being able to talk to real Berjaya Air staff at SZB
rather than possibly "less understanding/less helpful" staff of a local singaporean handling agent (no punch intended). I´m not sure whether Berjaya has own staff at SIN
routing should be possible without a problem since the routing via TOD
in both directions usually is operated just before/around noon. So, it certainly is no problem to get a suitable FY-flight SIN
that leaves ample time for dealing with Berjaya staff at SZB
If you decide to go SIN
I suggest you contact Berjaya Air in SZB
by email maybe a few weeks before departure (just to be sure...)