As a new user of Easy EDA I find it disconcerting when placing traces on the bottom layer of my board.  They disappear as I place them, so if I mess up the routing I won't know it until I exit the Trace mode.  Is there a way to make them visible at all times during the operation? This behavior seems inconsistent because traces on the top layer are visible at all times when they are placed. I have done NO customization to my working environment, this is the out-of-the-box behavior.  I'm running Ubuntu 18.04 on a Lenovo W530 and the Chromium internet browser. -Mark