Thank you! It works!!! =)
This is not exactly what I am looking for: in this case I will use only one camera control, that is focused on current part of my or reference model.
I would like to see both models (reference and mine) on different monitors simultaneously.
But as a workaround it definitely may be used with current version of LDD.
I've edited my request accordingly to your answer.
I would love to see 2 features:
1. Start multiple instances of LDD.
I use 3 monitors, and sometimes it is very helpfull for learning modeling to compare someone's creation with mine =)
I would like to see both models (reference and mine) on different monitors simultaneously.
A workaround with importing reference model into mine project is not as good for me as having 2 instances of LDD with 2 camera controls in each.
I think it should not be default option, but have some checkbox in settings would be very helpfull for me.
2. Changing speed of camera move
Using "Alt" and "Ctrl" buttons with mouse wheel to move smaller and bigger steps on each move.
"Half Dome W. 4 Snap"
Design id = 13267 (and I saw it with different IDs: 13271, 13272, 99639, 98114, 98115, ...)
like this: http://brickset.com/parts/6025319
Complete list is here:
http://brickset.com/parts?query=Half%20Dome%20W.%204%20Snap