You are supposed to find these in
http://www.msgplus.net/help_tutorials.php , however, as the tutorials haven't been 100% updated for Plus! 3 (for example, the page for quick icons still applies to Plus! 2 only), it's suggested that you read the
change logs and search for "quick icon" in it. You will find this:
quote:
F1 to F5 keys can be used to quickly switch panels.
Give it a try