Its pretty simple, i learned that equipment attributes are stored as "Float". I did every search possible, Auto, Dword, Float, Dounble, etc... and found out that they are stored as float.
So to search them simply make group search, for example:
+5 Mana Regen
+15 Dexterity
+6 Attack Speed
Make a group search for 5;15;6:: ordered in this case. You will get probably a bunch of addresses, not that may to be honest since its in Float. Then filter for 15 which is Dexterity and you will get a few addresses. Probably like 5 or less, maybe more. But thats ok, while they are all checked, change them all to 999999999 and boom! done...
As far as which one is the one that controls that specific stat you can try incrementing first instead of putting 9999999999 right away and you will see which one is the address that controls it and study everything around it in the memory section.