Hi, the LaTeX graphic package tikz offers the possibility to draw graphs of functions, using the computational power of gnuplot quasi automatically. For this plotting mechanism to work it is necessary to allow TeX the call of external programs. Usually it is something like "--shell-escape" or "enable-write18". Is it possible to use this feature from lyx and how can I tell Tex/LaTeX to allow external programs? Is it somewhere in the LyX configuration? Thanks Gerhard
