it is possible but not recommended. Especially during test/exams
periods, there was one dude (clerk) during my active days who want
to change his duty because his exam date fall on the same day but
kena rejected by RSM. He LPPL.
And during course days in the evenings, u must also confirm and
chop u can
1) dun need to go for exercis/outfield that laga with ur course
or LPPL.
2) u can siam ur encik/RSM/ocifer sai gang or LPPL.
3) have nites-out or LPPL.
2) enough leave to cover for exams or LPPL. Leave also bo bao
one, ur superiors can suka suka cancel ur leave and ask u to come
back in ur middle of ur exam.
3) find some way to escape MOB or LPPL.
4) ur buddies cover for u in terms of exchanging duties, etc or
u LPPL. Sometimes u kena blackmail into doing all weekend duties
just so that u can go for ur weekday course so be careful.
5) some units disallow part-time course one. If they found u can
bo da bo ji kena extras and ask to stop ur course.
And I have not begin to touch on the school work part, like I
said, it is possible but not recommended.