Eclipse "CLEAR KEY" (numpad 5 with NumLock off)

I'm using Ubuntu 11.04 and Eclipse 3.5.2. Is there a way to get Eclipse to recognize the numpad-5 key with numlock off (called VK_CLEAR in Windows, and either KP_CLEA开发者_Go百科R or KP_BEGIN in Linux)? I use the key in both NetBeans and CodeLite to re-center the current line in the text editor window.