GUI Building Help - Layered Options

I am trying to build a GUI for a code I've already written. I am hoping to have a drop box that lets the user choose two options and based on the option they choose I want to have a unique "next step" pop up. I.E. if they choose the option that requires them to enter a scalar number I want a text box to appear for them to enter the number, but if they choose the option that requires them to enter a vector, I want a push button to appear that allows them to load an excel file containing the vector. How can I accomplish this? Thank you.

Answer 1

[TastyPastry]

You'll need to edit your callback function for that popupmenu.

 function popupCallback(hObject,eventdata,handles)
  ind = get(handles.popup,'value');
  switch ind
   case 1
   case 2
   %etc...
  end

Under case 1 and case 2 you'd run their respective functions.