-aa   watch attribute setting
-at   watch attribute testing
-bg <colorname> background color
-c # context lines
-fg <colorname> foreground color
-fn <fontname> set font name
-i   ignore fatal errors
-lm # left margin
-ol   watch object movement
-om   watch object locating
-P   alter piracy opcode
-rm # right margin
-rs # random number seed value
-sc # transcript width
-t   set Tandy bit
-u # slots for multiple undo
-v   show version information
-w # text width
-x   expand abbreviations g/x/z
-xrm <resources> Set X11 resources
-zs # error checking (see below)