I am relatively new to Altium and have been plodding right along, but I am stuck...
Is there a way to set a seperate clearance rule for "pad to pad?" I found the electrical clearance rule, but I wanted to set a seperate clearance for "pad to pad" and/or "via to pad."
You do use an electrical clearance rule, and as Inka_One mentioned you need to use the Altium rules language by using query helper or builder.
As a quick start though the rule you is "ispad" if you put this in both boxes it will do all pads on all layers. You can narrow the rule by adding other rule objects such as ispad and onlayertop etc. Or set up a pad class but these are overkill if you just want a general global rule.