Hovering: Deadzone after grid navigation

[klues]

Current behaviour if using "Hovering" as input method:

• mouse is positioned on an element
• after hover-time is elapsed the element is selected
• grid navigation is done (if the element has a "navigation" action)
• on the next grid the element where the mouse is positioned is NOT automatically activated (which is good)
• minimal movement of the mouse (or touch-movement) causes the current element to be selected

Goal
It would be good to have an option to define a custom "deadzone" for hovering after grid navigation. This means that after navigation, mouse (or touch) movement can be done within a defined radius without selecting the next element.