Custom keyboard shortcuts for Liquify and Vanishing Point filter interfaces in Photoshop CS4?

Is there a way to set custom keyboard shortcuts for Liquify and Vanishing Point filter interfaces in Photoshop CS4? When I change my keyboard shortcuts preferences for Photoshop, they don't change for these filter interfaces. Is there another way?

Just go to Edit->Keyboard Shortcuts..., change the shortcut of the Application Menus. Accept the new shortcut and you will see the update in the menu.

im referring to the keyboard shortcuts once inside those filter interfaces...not starting those filters...