Samsung SyncMaster 403Tn Owner's Manual page 72

Specifies the position at which the sc hedule is plac ed.
Insert betw ee n ex isting schedules
This m eans that the new sc hedule is in serted with out affec ting the total
playtim e of existing s chedu les . If the new sc hedule to be ins erted intrud es
on the end time of the existing sc hedule, the s tart time selected by the
user is igno red and the s tart time is chan ged to after th e end time of the
existin g sc hedule. If the end time of the n ew s ched ule to be inserted
intrudes on the s tart time of an existing s chedule, the start tim e of the
existin g sc hedule is chan ged to after th e end time of the new sc hedule.
Ignor e & ove rw rite ex isting schedules
Existing s chedu les are ignored and the new sc hedule is ins erted at the
required time. If th e new sc hedule overlap s w ith an exis ting sch edule, their
time c an be chang ed and can even be removed b ec ause it is overw ritten
by the new sc hedule.
Ov erw ri te the prese nt sche dul e
If an existin g sc hedule overlaps w ith the new sch edule, it is ignored an d
overw ritten b y the new sch edule. B ut if the end time of the n ew s chedu le
overlaps w ith an existing sc hedule, the s tart time of that exis ting s ched ule
is ch an ged to af ter the end time of the new s chedu le.