You may not have discovered, as you are new to the program, that you can easily reinstate the more familiar menu bar. This may help you to navigate a little better.
Click the small blue square with the arrow, over on the right of the default bar, and select "Show Menu Bar".
Select "Tools" and "Options", and then "General". Select "Play sound when new message arrives"
If this is not what you are seeking, perhaps you mean the old "Send/receive" option? This has been replaced by "Sync", because of the new multi tasking methods of collecting email, employed by "Live. Just click "sync"(On the top bar), or Ctrl F5 together.