I remember when I was playing Endless Ocean, I used to play it extremly lazy. I was laying on the sofa covered with a blanket and only my right hand (wiimote hand) outside the blanket. You can play the whole game with one hand - very relaxing!
To get to the map you have to push the "1" button and to change view the "2" button. I did not have any problem at all doing this. Not the way curl-6 does it though. I just bend my thumb and press the buttons with the part of the thumb that is closes to the nail. (As many concentrates on curl-6 beautiful fingers and nails, I will not post a picture as I am ashamed of my nails - I am a nail-biter)
( As I did not have the game available right now I found this nice site with Nintendo-manuals. http://www.nintendo.com/consumer/manuals/en_la/wii.jsp )