Hi I added 'Exani Hur "UP' to 'Page Up' buttom and 'Exani Hur "DOWN' to 'Page Down' and 'Exani Tera' to 'End' Buttom but when I walk with numeric keyboard and press '9' it tries to use 'Exani Hur "UP' and when I press '1' it tries to use 'Exani Hur "DOWN' how can I fix that?