solved:
i check "use uikey" lua option in game.
and i put my hold config in uikeys.txt (on the root directory):
//Pour etre sur de pouvoir glisser de bureau avec Compiz ou Metacity (ne semble pas fonctionner)
unbind Any+right moveright
unbind Any+left moveleft
unbind Alt+right
unbind Alt+left
unbind Ctrl+Alt+right
unbind Ctrl+Alt+left
bind right moveright
bind left moveleft
bind Ctrl+right moveright
bind Ctrl+left moveleft
bind Shift+right moveright
bind Shift+left moveleft
//sans cette ligne impossible d'utiliser le groupe 6
unbind Any+- slowdown
//les 10 groupes 1 à 0
bind 0x26 specteam 1
bind Any+0x26 group1
bind 0xe9 specteam 2
bind Any+0xe9 group2
bind 0x22 specteam 3
bind Any+0x22 group3
bind 0x27 specteam 4
bind Any+0x27 group4
bind 0x28 specteam 5
bind Any+0x28 group5
bind 0x2d specteam 6
bind Any+0x2d group6
bind 0xe8 specteam 7
bind Any+0xe8 group7
bind 0x5f specteam 8
bind Any+0x5f group8
bind 0xe7 specteam 9
bind Any+0xe7 group9
bind 0xe0 specteam 0
bind Any+0xe0 group0
//permet de dessiner
bind Any+* drawinmap
//orientations de batiments
bind numpad2 buildfacing south
bind numpad4 buildfacing west
bind numpad6 buildfacing east
bind numpad8 buildfacing north