How to remove an initial value (0) from a "Numeric Entry" field

I am having a similar issue. I have two specific issues I am trying to solve: 1) I don't want the zeros to appear (I have not renamed the variables) and 2) I want these typed numeric values to reset when a user clicks a button. I have attached a file with my current efforts. You will see that I have added triggers to reset these values and I have tried adding a duplicate slide so that you go back and forth in an attempt to trigger the reset when revisit. None of these have worked for me. I'd like to avoid javascript fix if possible.