Solve App selecting Independent Plot Var

[math7]

Hi, I understood your point ... but why do you want to do this as well? It seems to me that in the current form as it is, in the numerical view you can choose the independent variable just by quickly positioning on it, and if you want to modify it and see how the relation between the variables changes, it is positioned on another variable quickly in the numerical view and ready. While if done with some command or function would be somewhat more rigid according to my understanding.