Question about the LFO menus.

[Remedial]

Okay, I'm pretty solid on what the LFO rate knob does, but, I'm wondering what the first menu option is for after selecting LFO 1 and Osc 1 as your destination. It merely says "Osc 1" on the second level of the LED screen and has an number in the value portion that can be dialed from -64 to +64. Does it do the same as the rate knob? It sounds as if it does. Also, when I hit the right "Part" button, the display goes to the "Amount" menu screen, which I figure should dictate how much LFO 1 affects Osc 1, but, after dialing in an amount of 7 on the "Osc 1" menu screen, changing the "Amount" appears to have no effect. Please let me now if I am getting the functions of these menu screens correct. Thanks.