It is a steep learning curve.
Whilst the manual is very comprehensive, finding sonething specific can be easier said than done.
Perhaps when you view the Webinars making notes and logging the time code will enable a quick return to a specific item when necessary, alas I was not that disciplined myself.
Tips
Using Songbook and Setlists effectively is the key to using a Pa, there is also Korg software called Songbook Editor which can help a lot, and yes there is a 35 minute tutorial video on using it available.
Some things to do, format a new USB memory stick in the Pa, create a Backup file and also create what we call a SaveAll file, the latter saves all your user data.
If you do not have the SaveAll file then when you reset the OS or update the OS you will loose all your user data if you have not created a SaveAll file.
Whenever I saved anything to a user location I always created a SaveAll just prior to shutting down my Pa.
Finally on the Korgworld.co.uk website I told you about in the resources you will find a file, Osimo for a Pa1000, download this file and extract it to your PC where it will have a .set extension, copy the whole file system to your USB memory stick and insert it into your Pa, Media > Load > select the Osimo file then click on OK you will then have a specific Songbook and Setlists that Korg UK staff inc Pete Shaw have created. It resides permanently on the menory stick and hence does not take any inbuilt Pa memory