Plotter, easy to make MARKS? .

[K-2]

I need a new plotter for crab fishing. I want to be able to dump a pot and EASILY make a mark, minimal button pushing. I want to be able to easily name or number that mark.
My main need for the plotter is marking crab pots and navigating back to them. I don't care about it being a fish finder,sonar , etc. Any recommendations? 8" or bigger.
Something recent, that is still for sale NEW . Thanks!