Link submit button to action plot by default

[jbernardsalas]

Entering the data for a target the user has to click on submit, but then has to select from the drop-down menu the target a so it is plotted. Whil the drop down menu makes sense in case of various target or if the user inputs severl individual tables, it would be good also that by clicking on submit the plot is shown, then the user can simply use the submitted target drop down to switch between plots, but at least by default you get the last submitted action.