Right just installed and fired up F4:AF.... it doesnt matter whether NumLock is on or off, the key still works.
Can I suggest that you try using:
Code:
macro = predef:NUMPAD4
macro = {PAUSE 2000}
macro = predef:NUMPAD2
or
Code:
macro = rawkey: VK_NUMPAD4, EXTENDED KEY
macro = rawkey: VK_NUMPAD4, EXTENDED KEY | KEYUP
macro = {PAUSE 2000}
macro = rawkey: VK_NUMPAD2, EXTENDED KEY
macro = rawkey: VK_NUMPAD2, EXTENDED KEY | KEYUP