Hi Henni,
I�ve no idea how this can be managed ( I don�t need it

) but :
You came from Yamaha, so you should be used to do the following :
Create one ( ore 2 or more

) registrations that include all settings you want to be set. Save it as "0001" / "0002". After the keyboard has started just call the "0001". It�s surely not the way it�s invented to be used by Ketron but it works.
If you set up your regs with a "logic" then you could do it this way :
1 : Eq, outputs and so on for headphone use
2 : as 1, but for PA
3 : Drums muted, the rest on
And so on...
You�ve just to make sure that you only select the items you want to have saved in the registries.
Hmmm, not so easy to describe in english language but I hope you understand what I wanted to tell you.