Speed of pedestrians in 0,1 km/h steps?

Hi,

it looks like the speed of any vehicle including pedestrians can be entered with a precision of 0,1 km/h.
But for some reason the speed is always cropped down to integer precision ... Guess why I'm asking ... Not for cars.
When I'm walking in the mountains, I have a speed of 2,5 km/h which is far away from 2 and 3 for calculating the remaining time to go.
So, is it possible to store at 0,1 km/h precision, or in contrary - why not displaying integers?

Thanks
Dirk