How do I change the icon on a map so it dont take up space (blue cirkle)

ON my Oregon the icon is a needle that does not flow over the GZ.

However in Etrex touch this a a blue cirkle, which messes thing up. Its seems to be the default symbol. How do I change that.

Etrex Touch https://photos.google.com/photo/AF1QipPKbtp3kdrk7L6-NdH4nbzutW8QbWWy2bpscllW

Oregon : ://photos.google.com/photo/AF1QipM2zdMMDMby6Flx38GirjhPfmLusHlfaaMlJMlT

Also when you load geocaches from live geocaches all waypoint got populate with the same cirkles, this is useless. How do I avoid that ?