Garmin/Google Earth/Homeport

[Pokerbill]

I know I can create waypoints in Google Earth, transfer those way points to Homeport and then to my MFD.
Noticed if I trace a breakline (visible at low water on Google Earth), that "line" transfers to Homeport. Can I transfer that "line" to my MFD? It is not a route just a line created wirh Google earth software.
I could make a route but obviously could not get all the bends and turns of the breakline. I know I could just download the "line" to the MFD but it has been my experience these units don't like what they don't understand.
Don't want to break anything.

[Todd Driscoll]

Yes, that line should be converted to a track in your MFD. I've done a lot of this, tracing creek channels from low water images on Google Earth.