There isn't that I see, What I generally do is only select 1 chain, then the Chain Options box opens and I add the rest of my geometry so that I only select once

Looks like, it's likely that your control def is set to not support peck drilling and/or, your post doesn't support a G83 function if that's what you were expecting to see. Go into your control def...machine cycles....lathe drill cycles and see if Peck Drill Full retract is checked. If it is not, check it, you may get a customize drill cycle message then, if you do, your post will need editing to support eh G83 cycle hth

In the threading dialog there is a spot to enter a Taper Angle hth

You would have to take this type of coding pcan1, pbld, n$, *sgcode, *sgabsinc, pwcs, pfxout, pfyout, [if nextdc$ <> 7, *speed, *spindle], pgear, strcantext, e$ and change it too look more like this pcan1, pbld, n$, *sgcode, e$ pbld, n$, *sgabsinc, e$ pbld, n$, pwcs,e$ pbld, n$ pfxout, pfyout, e$ That will break it down, code by code hth

I will typically use a 5 axis Multi Surf locked to 4, gives you far more control. Never a fan of the 4 axis rotary path

I saw this one time. There was a corruption in the Registry, IT wound up recreating the drive There is a Microsoft registry repair utility you might try if X6 is installed and this still will not install hth