On Thu, Jul 10, 2003 at 05:10:17PM +0300, Amir Seginer wrote: > Hello, > > I've just been trying use the command \xrightarrow with it optional > argument, e.g. > > \[ leftside \xright[down]{up} rightside \] > > Is it possible to do this (and in general use optional arguments in > math/display mode)? I've tried writing it as regular text (without the > \[ and \]) and turning it to a math/display mode. I've also tried to > insert it manually in the .lyx file, but to no avail.
In LyX 1.3.x, you type \xrightarrow and then press <space>. Then, you can edit both arguments. > > I'm using Lyx 1.2.1 (Xforms) You should upgrade to the latest version.