Thank you for your reply.
It is a shame that one cannot get into the Kobo software as easily as a PC. I am mostly concerned that eventually Kobo may lock up their system the same as Kindle’s. For us amateurs it then becomes more difficult to internally twiddle.
For example, my PC has only a max of 5hrs max for system to go to sleep. By going a tad deeper into the software I have been able to reset it to 12hrs a most useful time should one err... proceed heavenwards.
I will continue to read the posts on this site and hopefully determine the best way forward without having to go through a full update.