> the "arrow" C is defined as > > \def\psas at C{2 \psas@@c} > \def\psas@@c{% > setlinecap > 0 0 moveto > 0 0.1 L % changed value from 0.5 to 0.1 > stroke > 0 0 moveto } > > you can simply redefine it. and can I define a new end ? because I do not want to use the redefined C end everywhere. Thank you