Log4OM

Today I set up a profile for a location I was going to use before I set off. For some reason my tablet didn't sync and offer me that profile (but that is another issue).
So I have logged today's QSO using a profile that had incorrect information. Fortunately I did have upload automatically turned off)
I have corrected my station callsign and SOTA ref (I didn't have one today) but some fields like locator, county and country are still wrong but I cannot find how to correct them.
How do I get to correct those in my log entries?

You use the archive manager, see the user guide and also the YouTube videos Log4OM QSO Archive Manager part 1 and 2

https://www.youtube.com/watch?v=aLXQwM-2uQ0

Thanks Terry. I was using the QSO archive manager but the only think I didn't try was the field update button!

I did do it by exporting the QSOs as ADIF, deleting them from my log, then using find and replace in a Notepad++ to correct the fields then importing the ADIF again.

Now I know the correct way!
I knew I must have been missing something, but not something that obvious.