Help on settings for a K mount lens on the K-5 IIS?

GordonBGood mentioned that I should consult the manual custom m settings to set the K-5 IIs to use my older FF Soligor 80-200 F4.5 lens. I only find a setting on page 4, #25 for "Catch-in Focus". Is this it? Also, what other settings / usage should I be aware of when using the 80-200? I would like to see how it produces before buying a newer lens for that range (which translates to 120-300 for APS-C). The MX is a 'K' mount.

-Richard
Pentax K-5 IIs, Sigma 17-50 f2.8 EX DC HSM, LX3, Pentax MX w/Pentax 40-80 & Soligor 80-200 f4.5 lenses, Lightroom 4.3, CS5