I just purchased a ne MacBook Pro and I am a new MAC user. I am using the Pro to log into work which is a PC server environment and a Mainframe. When logged into the Mainframe I have function keys defined to perform various tasks such as up, down, left, right, repeat find, edit, etc. If I key an 'm' on the command line and then press the F8 (my down key) it will take me to the bottom of the data I am looking at. My question is how can I use those function keys when I am logged onto my work's mainframe using my MacBook Pro? I have tried holding the Fn key in the far left of the keyboard and then F8 and it performs the MacBook Pro function. This is my first post and if I did this in the wrong place or format, please be kind!