Hi Keith,
the styles system on PA5x is very similar to my sx900.
I actually organise my user styles for PA5x as I do for my sx900
I keep all my user styles ( my database) on usb stick.
I have folders for all the categories. 01.Pop, 02.Ballad , 03.Ballroom,etc
Inside each of the folders I have a folder for PA4x styles, a folder for pa3x, a folder for pa800 etc
Basically there’s a lot of double ups thru the various model keyboards, same as there was for Yamaha series. ( I went thru approx 5000 Yamaha factory styles and ended up with just over 1,000 ( I think , that weren’t duplicates of what I had on my sx900, can’t quite remember as I can’t get access to psr style site anymore and I can’t be bothered counting them

)
Anyway reason for keeping them in model categories, a Pa4x style is going to sound better than an identical pa1x or pa800 style. Not only that , but pa800 only have 2 fills not the 4.
I keep a full set of the styles on my pc for backup, just in case I accidentally delete something.
As for organising, I move them round, delete them, copy them etc on pc.
I then audition them on PA5x and delete the ones that are duplicated or ones that I don’t want.
The handy part of PA manager, it puts together printable lists and identifies the keyboard the style came from.
I don’t know if I would have bought it ( in Aust. Dollars it’s pretty expensive) a lot of the functions I may never use, but I initially bought it years ago for my pa3x, lost it when I upgraded pc’s, and forgot all about it, till I came across an old email receipt. Decided to see if it would let me upgrade, (some 10 years later) it did, so thought why not.
It will help sorting thru styles a lot easier, I’m going thru process of rechecking.