I have been trying to add markers to plot a trip from San Diego to Orlando Florida with stops in, El Paso, Huston, Mobile and then to Orlando (I know lots of driving and not a lot of sight seeing on the way out), we will take more time on our way back. I am not getting any box to click to add the markers.
I am using a MAC with OSX 10.8.5, is that supported?? If I need to use a PC please let me know. I also have Firefox and Chrome browsers if they would be a better choice.