On terminal, to disable ALT to show menu tabs

I prefer on terminal using ALT-b to move to previous word/space (I'm not sure if this is normal behavior of terminal but at least on Gnome I can do that). But on unity pressing ALT only shows the menu tabs that are hidden normally. How can I disable that?

I'm on Quantal.


Solution 1:

"Edit" --> "Keyboard Shortcuts", then disable "Enable menu access keys (such as Alt+F to open the File menu). With this ALT still shows menu tabs but you can use combination like ALT-b.