I have a dropdown X and a text input field Y. Dropdown X has two choices: a and b. I want when the user selects answer choice b, the text input field will erase all of what the user entered. When the user selects answer choice a, the information entered in the text input field will remain. Not sure exactly how to do this, so any help would be appreciated. Just want to know which settings I have to change and which formulas I need to input. Thanks in advance.