Switching perspective feature hides/restores all panels except of the main editor window for current FB.
So all available screen space is used for editor.
<HTML>
<BODY>
<CENTER>
<IMG SRC="../images/aboutlogo.png">
<BR><BR>
<font size="3">The PLCopen Editor saves and loads XML projects,<BR>accordingly to PLCopen TC6-XML Schemes.</font>