How do I set the load segment to 07C0 in K3B?

I am trying to burn a bootable Windows XP CD, and the Windows program I
use to do it (Nero) requires that I set the load segment to 07C0 with no
emulation and 4 loaded sectors.

I try to enter 07C0 but K3B doesn't allow me to enter alpha characters,
only numeric. Should I convert from hex to decimal?

Thanks,
Thomas