Reading a trailer tells you what happens; hearing it tells you the line is
four seconds too long and the grandmother sounds thirty. So the play button
ships before the draw button - speaking a whole trailer costs fractions of a
cent against five dollars to draw it - and it prints the spoken length against
the length the writer planned, which is the most common fault in these scripts.
The note box saves as you stop typing. A note you have to remember to save is
a note that gets lost when you switch tabs.
The draw button is priced from what the writer actually wrote - three sheets a
character plus an opening and a closing frame a shot - rather than from an
estimate, and is disabled until that stage lands.