Hot Keys (Shortcuts) to change symbol (Stock, pair, indice, etc)

Actually with sideways keys you can change it but it doesn't work very well. When you get to the ends of the list, deactivate the function and you have to click again on a symbol to make the change. 

I feel like the full range of numbers are being wasted, including with CTRL + (1,2,3 . . .) and ALT + (1,2,3 . . .), some already exist for certain things but many are still available. Simple numbers could be used to go to the symbol number. 1 (Graph 1), 2 (Graph 2), 3 (Graph 3) . . .