Hi, How do you set an interactive link (hyperlink) to the table of contents in a footer ? I tried with \setupfootertexts[-1-][\but[toctoc]][-4-][-3-] and \reference[toctoc] % \ref[toctoc] gives the same error \placecontent This gives the following compile error: ! Undefined control sequence. <argument> \but [toctoc{}{}{} \firstoftwoarguments #1#2->#1 \doattributes ...sname #1#2\@EA \endcsname \fi {#4 }\dostopattributes \dosingletexts ...atetexts {#1#2#5}{#6{}{}{}}}}}}} \egroup <argument> ...?tk \v!footer \v!text \c!righttext } \@@nmpos {\getvalue {\??tk... \dododoplacelayouttextline ...#2 #3}\hbox to #1{#4 }\stoplayoutcomponent \get... ... l.45 \chapter{Chapter Testing} ? ! Emergency stop. <argument> \but [toctoc{}{}{} \firstoftwoarguments #1#2->#1 \doattributes ...sname #1#2\@EA \endcsname \fi {#4 }\dostopattributes \dosingletexts ...atetexts {#1#2#5}{#6{}{}{}}}}}}} \egroup <argument> ...?tk \v!footer \v!text \c!righttext } \@@nmpos {\getvalue {\??tk... \dododoplacelayouttextline ...#2 #3}\hbox to #1{#4 }\stoplayoutcomponent \get... ... l.45 \chapter{Chapter Testing} ! ==> Fatal error occurred, no output PDF file produced! Alan P.S. The "TeX for the Impatient" book mentions... an undefined control sequence, is one of the most common ones you can get. If you respond to the prompt with another '?', TEX will display the following message: Type <return> to proceed, S to scroll future error messages, R to run without stopping, Q to run quietly, I to insert something, E to edit your file, 1 or ... or 9 to ignore the next 1 to 9 tokens of input, H for help, X to quit. sciTE exits the code after an emergency stop, so how do you enable it to accept the above mentioned '?' prompt response ?