Yes, following on this:
Maybe you can use the example code I have already to adapt it get the user input and then look like it changes when ‘Submit’ is pressed. (My current button equivalent is ‘Plot Selected’.) To see my example and code, go to here and click on the ‘launch binder’ badge . Then under ‘Available Demonstration Notebooks’, select ‘3D scatter plot using data in a file and Voila interface’. The code you want to play with is in the only code cell on the page.