Act 3, Scene 2 Script… Final? by ina
The latest revised version of the script is here: http://inacentaur.com/SLSCMousetrapDraft3.pdf
Blocking diagram summary: 
Major changes summary:
1. Polonius clicks to close curtains after leaving balcony view in
“Bid the players make haste”
2a. Prologue (or first player — if sound switch is done) enters and
clicks to make invisible the player’s imprompt shed during the “Danish
march”
2b. Lucianus appears *before* his speech entrance. Just passing from
opposite stage doors.
3. Ophelia actually sits on stage level
4. Horatio sits with musicians and enters with them too. He should
visibly point his head up at Claudius at appropriate times - see
script. The musicians are on the stage all the time after entering.
5. There’s a single chair near where Hamlet stands — but he never
actually sits on it. He gestures to Ophelia to sit on it, and, on one
level, the banter about him sitting on her or otherwise is about the
single chair.