So I just got a Lvs34 this winter and have been playing with it.  Last time out I got into some preset menu for my settings that had like 3 options, one of which was pro mode, fun part being I couldn't get out of it.  I eventually did but don't recall how.  Yesterday I was out again and could not for the life of me find that menu, any ideas where it is or how to get there, the you tube isn't being helpful

Get into the LiveScope menu, then select the star box just below the hamburger button (three lines) just to the left of the menu at the top of the screen.  The hamburger and star buttons toggle between the menu and the presets.

Thank you, I was beginning to question my sanity, there is nothing on YouTube or Garmins website about the presets that I could find, I was beginning to wonder if I was imagining things

Mine has 5 presets. Bait Balls, factory settings,pro, save and manage. 
 

Factory settings for sonar units are good for entry level use to get familiar with the units. To take full advantage custom tuning for your specific conditions on the water is essential IMO.

Tom
 

I did some adjusting, I just couldn't remember how I got into and then out of  that menu initially .