Hi Anna,
I would suggest create two button, one for each window unless the functionality and callbacks are same for push button in both windows.
In the first window when the user clicks the button, this leads to opening new window with 5 question and button in first window can be hidden or removed in callback as follows
function ButtonPushed(app, event)
%call function or code inorder to open new window
app.Button.Visible="off"; % button exists but no visible to user running the app
%or
delete(app.Button); %delete the pushbutton component
end
And once the user submit the answers you use can button in second window to evaluate the results with different callback.
