Considering the throttle of the GE 4/4 II is also it's cruise control, please adjust the HUD so it displays the speed selected. The mouse-over tooltip when hovering over the throttle lever in the cab does display the speed selected, but the HUD gives some meaningless number. It also misses the the blue bar used for AFB speed selected, like the BR143 has. Which is a tad odd, IMO, as I think the BR143 and the GE 4/4 II operate very similarly. I had expected the GE 4/4 II have a HUD display similar to the BR143.
It really should display as you describe on the speedometer, as all other speed set functions display the same way in DTG routes. Currently there is no proper indication of what you are set to, despite the ‘fix’ Rivet did to add the ambiguous digits to the throttle indicator box. There is no reason I can think of that the number in the box shouldn’t reflect the actual setting, ie 3.0, 3.3, 3.5, 4.0 etc. These briefly come up correctly on the right of the screen, so I keep my eye on that when changing throttle position, but there is also a box for that specific purpose on the HUD which Rivet just ignored at first, then put the default settings 1-10 in when they attempted a fix.