Hi to all, I suggest all specific LyX latex commands to be before the user latex commands (latex preamble). The two main reasons are : - This is coherent - That makes it possible to avoid double definitions
For example I use \bsc command in the user latex commands. The \bsc command is from babel package which is defined by LyX but, for some unknown reason, after the user commands. So I have to also define babel package in user latex commands (latex preamble). The result is double definition of \usepackage{babel}. It should be good to correct this and insure user latex commands are the last before the begin of the document. Thanks a lot, Laurent Grawet