Is there any possiblity to quickly set the simulation speed to real-time mode (speed factor = 1)? In version 2014 you could click on the clock symbol in the simulation control to switch to the real-time mode. Also other values like 2x, 5x or 10x of real-time could be easily entered by the simulation speed factor.
There is currently only real time mode and you can use the scroll bar to set the simulation speed. I agree that setting the precise speed is not very easy at the moment. There is still room for improvement here.
Double clicking the slider will reset it back to real time 1.0
(you need to double click the actual thingy from where you slide the speed)