Is there any way to add a toolbar button that performs the "Check For Program Updates" [sic] function? I tried adding one that calls the command "CHECKUPDATE (with and without /O ... I'm not sure what the /O is for anyway), and it doesn't work. Instead, CHECKUPDATE gets passed to Windows as a regular command line, and a "not found" error occurs.
The command is:
Help CHECKUPDATE
In the default menus/toolbars it's under Help > GP Software on the Web so you can copy it out of there to save a few seconds, if you want.
Things like /O at the end of argument names are not part of the names themselves. /O means the argument can take an Optional parameter. Check out the start of the Opus Raw Commands section in the manual for a full list of the /O /S etc. codes and what they mean. They look unusual at first but they're actually pretty simple once you know what they are.