title: unity c# dropdown preface text
body: <p>I'm trying to make a drop-down option as part of a login screen which selects a domain for the user to log into, such as "event a" and "admin". I would like there to be the preface text of "select domain..." on the drop-down UI where the selected option usually is displayed BEFORE an option is selected. Currently, it always shows the top option, regardless if a selected has been made, as soon as play mode is enabled. Is there any way of disabling or altering this to show the preface text until an option has been picked?</p>
  
  <p>Using unity 2018.2.5f1 and c#</p>
  
  <p>Please see the hyperlinked video for a visual representation of my problem
  <a href="https://youtu.be/1bX_xc4sDeE" rel="nofollow noreferrer">https://youtu.be/1bX_xc4sDeE</a></p>
  
  <p>ps I'm fairly new to c# and unity UI so have probably made some horrific mistakes xD</p>
  
  <p>I would also be grateful for any advice regarding access levels (for admin - to access an admin only scene) and proper implementation of user accounts! :) Thanks!</p>