If teachers do not want to use the pdf annotation features, they should be able to disable it for a single assignment.
AMOS BEGIN
CPY [default,assignfeedback_comments],[default,assignfeedback_editpdf]
CPY [default_help,assignfeedback_comments],[default_help,assignfeedback_editpdf]
AMOS END
AMOS BEGIN
MOV ['gspath','assignfeedback_editpdf'],['pathtogs','admin']
MOV ['gspath_help','assignfeedback_editpdf'],['pathtogs_help','admin']
AMOS END