So I have a desired Gen 7 TID (6 digits) that I want to use, along with a specific 5 digit TID and SID used to calculate that Gen 7 TID. I can input my Gen 7 TID into PKHex just fine.
The problem is that I can't figure out how to get the right 5 digit TID and SID. The only thing I could find to influences them is the value of the Gen 7 TID field and another field called "SID" that only allows for 4 digits from 0000-4294. What is this number? Now this is really confusing because SIDs have ALWAYS been 5 digits long in previous gens from 00000-65535. Where is this 4 digit "SID" value coming from? To make matters worse, there doesn't appear to be any calculator that calculates a 4 digit SID based on the 5 digit TID and SID you feed it.
Older versions of PKHex from 2017 allowed you to directly enter the 5 digit TID and SID, bypassing this problem altogether. But I can't find any builds of PKHex that old.