One way to toggle is to use Chart Groups. One group contains the GE KAPs and the other doesn't. Use the right click to switch between groups.
My GE KAPs are mostly in areas that are poorly charted, like
Belize. These
charts are at a much smaller scale than the regular
charts, so that, the GE Kap chart doesn't show until you zoom way in well past the usefulness of the regular chart. If the GE Kap becomes distracting I "Off" it.