[Sébastien]

Thank you so much for your answer, I have found a solution with your tips ;)

Crafting a RTF link and capturing it into the clipboard worked very well. I use the following script for this :

#! /bin/bash
echo "{\rtf1\ansi\ansicpg1252\cocoartf1038\cocoasubrtf3 20
{\fonttbl\f0\fswiss\fcharset0 Optima-Regular;}
{\colortbl;\red255\green255\blue255;}
\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3 920\tx4480\tx5040\tx5600\tx6160\tx6720\fi560\sl288 \slmult1\sb160\ql\qnatural\pardirnatural
{\field{\*\fldinst{HYPERLINK \"$2\"}}{\fldrslt*
\f0\fs26 \cf0 $1}}}" | pbcopy -Prefer rtf


Let's say this script is named "make-rtf-link", I just call it like this :
make-rtf-link <the link I want to use> <title of the link>*

And then I obtain a RTF link in my clipboard, which can be pasted into OO.

WIN *\o/


"Maybe the OO mouse operation doesn't seem so bad now :-)"
Ha ha ! Well... I just feel really better when I don't have to use a mouse when I work ^^