So I was having a run on the pre-order build on the laptop, without my mouse connected up so just using the mouse pad and wanted to change the running speed. My mouse pad is temperamental and at that moment didn't want to move so I could change the speed.
Now in some games the numeric keys 0 (pause), 1 (slow), 2 (normal), 3 (fast) etc are often used as an additional way to control the passage of time, just to test it out I hit "1" and no change.
So I thought I'd throw it up as a suggestion of a potentially useful addition and see what other thoughts there may be.