Maps v3 will always condense the four available mapTypeIds (HYBRID, ROADMAP, SATELLITE, TERRAIN) into two buttons plus a check box for each of these buttons. So SATELLITE + HYBRID will provide you with a Satellite button with the Labels flag, and ROADMAP + TERRAIN will provide you with a Map button with a Terrain frame.
Please note that this flag is displayed only when you hover over the active button, so you will need to be in map mode to see the "Territory" flag under the button, and you must be in "Satellite" mode to set the Shortcuts!
It is interesting to see that there is actually a Hybrid button, but it only becomes visible when you add HYBRID to mapTypeIds without , adding SATELLITE. The same is true for the Terrain button, which becomes visible only when TERRAIN is added to the list, but not ROADMAP.
When mapTypeControlOptions.style is switched to the drop-down list (DROPDOWN_MENU), instead of the (HORIZONTAL_BAR) buttons, more than two elements in the pop-up drop-down list will also not be displayed. Like buttons, there will be no more than two drop-down elements plus a flag for each of them.
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