Rick,

 
You can use the Toolbar item ''break'' to put the other buttons in the next row:

Open your simple.config and add the following code:

 

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
 <toolbars>
  <item type="g_start" />
  <item type="g_end" />
  ------------
  <item type="linebreak" /> 
  ---------------
  <item type="g_start" /> 
  <item type="image" name="Bold" />
  <item type="image" name="Italic" />
  <item type="image" name="Underline" imagename="under" />
  
 </toolbars>
</configuration>