need help with Shonky and 660

I have loaded Shonkymaps onto my Zumo 660, but cannot find how to select and view them over CN.
Can anyone help?

I have the garmin & oztopo on the 660s internal memory.
Shonky is on a micro sd inserted in the 660.

You can't have 3 sets of maps in the internal memory.

I know this is late, but hey I only read it today

Yeah you can
Goto
Tools
Settings
Map
Map Info

and then check or uncheck the maps you want to view

Cheers

Sure, but you won't see Shonky "over" CN. Far as I can figure, it'll be one or the other, not both.

if cn is selected it will be the default map seen every time
no matter what other map you select

Ausguy