On the German Korg forum I came across the following survey to explain to former PA3X ( and other PA ) users the new structure and definitions that are being used for the PA4X and are subject to quite a few misunderstandings here and there, not least of all with yours truly himself.
My gratitude goes to Siebenhirter ( Austria) for the following contribution:



Hi,

There are no substantial differences in saving styles and their settings between the PA3X and the PA4X ( with the exception of Direct-Styles). The PA4X has factory, user and favourite styles which are saved in the same way as with the PA3X.
And similar to the PA3X you can save user and favourite styles but to replace factory styles you will have to unlock the Factory Protect for factory styles.

The PA4X introduces some new terminology:

KeyboardSet = Performance in PA3X
Keyboard-Set-Library = Performance-Bank in PA3X
Keyboard-Set1, 2, 3, 4 = STS1, 2, 3, 4 in Pa3x
Style Performance = Style settings of the keyboard tracks
Style Setting = style settings of the style tracks
SetList1 ... 12 = Songbook Custom List in PA3X



Write KdbSet to Library = Write Performances >Keyboard Set Bank ( = Performance Bank) and Location ( Performance number) can be selected from the screen.


Write KbdSet to Style = write STS into the current Style ( Style Performance) > Style is shown and selected, you can select the location (STS-number) on the screen.


Write Song = a new Songbook entry is created either as a Style- or a Song. ( including all appropriate Performances of the style used )


Songbook/BookEdit1 KeyboardSet/Write Current = saving the STS set of a Songbook entry >
Keyboard Set ( all STS or STS 1-4) can be selected from the screen



Style Performance are those settings in which the style settings ( keyboard-set 1,2,3,4,) of the realtime upper 1,2,3 and Lower have been allocated to.



Style-Setting are those tracks that have been programmed for Drums, Percussion, Bass, Acc 1-Acc5.
(Background Tracks)



Writing current Style Setting = writing/saving all settings for a particular style >Style bank and Style can be selected from the screen.