[RFE:] keyboard shortcut to 'back' function in Max/MSP/Jitter documentation

Please, consider assigning a keyboard shortcut to 'Show previous page' function in Max/MSP/Jitter documentation browser (the leftmost triangle in the lowest left corner of the documentation browser window): this will really speed up reading of the docs (especially on notebooks/netbooks without the mouse).

Usually this function is assigned to 'Backspace'.

Thank you.