Local adjustments sub-palette: grayscale mask being displayed should follow the hovering

In the local adjustments sub-palette, user can see at a glance a list of adjustment masks.

From the sub-palette, a quick way to visualize each mask by hovering would be welcome.
When a grayscale mark is being displayed, hovering in the local adjustments sub-palette over different local correction items displays the masks (any tool: control points, graduated filters, brush and auto brush). However, the grayscale mask being displayed does not change. The grayscale mask being displayed should follow the mask being displayed, as selected by hovering.