"VC"?
If you're referring to VoiceAttack itself, you could have the "Capture Mouse Position" dialog open while ingame, so you can press F8 (or another key if you remap that) to capture the current cursor position (provided the game uses absolute mouse positioning).
Alternatively, if you want to capture multiple coordinates without tabbing back and forth, you could create a VoiceAttack command that writes the coordinates to the log (of course you'd have to remember which coordinates go to which menu item)
E.G.
Write [Blue] 'Mouse X: {MOUSESCREENX}, Mouse Y: {MOUSESCREENY}' to log