Insufficient mouse settings

[Serah Allison]

Suggestion:

Unity's "Mouse & Touchpad" settings (in unity-control-c) includes a mouse "Pointer speed" slider which seems to increase absolute mouse speed as well as mouse acceleration. It would be great to separate these features into two separate sliders:
 1) Pointer speed
 2) Pointer acceleration

Changing the slider doesn't appear to change xinput settings for my mouse. I can achieve the mouse settings I want by setting the "Pointer speed" to "Slow" and then using xinput set-props in the command-line, but it'd be great if this could be integrated into the GUI.

(I'm using Ubuntu 15.04;
Output of uname -a : Linux Lightfox 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux )