In addition to this request, I'd like to be able to set (integer, numeric) values manually (with my keyboard). Not only for snapping, but also for angles, brake speeds, acceleration rates, exit speeds, prices, etcetera, like the salary for crew is manually editable by keyboard. This would make it a lot easier for me to set the speeds and/or angles I'd like. The slider is a bit buggy sometimes too, when I try to set the 'braking' speed of the blockbrakes to maximum, it reverts back to previous value. Making it possible to set it manually, by keyboard, would be way more easier to achieve this.
Small addition: it would also be nice to manually set the angle after a corner (for example) has been made

Now the angle can be edited, but only freely by mouse movement. Would be nice if it could b e set manually too.