VFR ILS? Is that even legal? I think you may be a bit mistaken, VFR means Visual Flight Rules, to land in VFR you use a circuit, and you don't make use of ILS systems to land. A localizer maybe, but not a fully fledged ILS approach. Now to make a full ILS approach, you should be IFR, which stands for instrument flight rules, in this case, you don't use outside references. In the IFR situation, you use an ILS (Localizer and Glideslope) to land. As for selecting the runway approaches, do what Samen said, select 3NM for a VFR approach, and 10NM if you're doing an IFR ILS approach.