Cannot use ALT key from zellij

I m using tabby on windows with ssh to code. From my remote server, I m using zsh and zellij. Default shortcuts of zellij use ALT+arrow to switch between pane.

I cannot use this combinaison of key from tabby. ( works from mobaxterm ). Pressing ALT key show me an unwanted cross cursor. I tried to remove all keybinding from tabby and enable "Use Alt as the Meta key" . But it doesn't work.