faster, easier layer selection

[A_Pirard]

Selecting layers is one thing one does very often.
It's cumbersome to select a layer by turning off two or three layers above it.

Clicking the eye button of an opaque layer should automatically turn off all the other opaque layers (raster), at least above it. ("one of" buttons).
Transparent layers remain unaffected and have their own independent visibility (vector or semi-transparent) ("multiple selection" buttons)

The active layer button is just too easily hit mistakenly, unnoticed for some time.
I suggest it be moved to the right of the icon, if not far right.
But please, no clicking of the icon (same problem).
Better than spacing eye and active apart, I think.

[Hb---]

Issue was solved with r13891 to Help/Action/ReorderImageryLayers