<inline> doesn't seem to work and no extension...If <inline> is set in this field or if no extension is set, the plug-in is for inline use only.
Then it seems there is a problem when, in an inline invocation, (either?) the plugin name or the file/path name contains blanks.Extension list cannot be empty.
I assumed from the help that any plug-in can be used inline, but the call always fails.
It's apparent that I'm overlooking something...