The regulation is of no problem. Just use your Redox electrode to do that. Program your switch socket for your Ozon and use function increase.
This was the easy part. The other part - shout down the ozon if you shout of your skimmer pump is more tricky. However - I have indication that it can be done with at least P4. First I create a pump group - group 6 in my case
I assign pump 16 to it
The standard program - no current
Create a special program that respond to channel with index 45 (in my case - my skimmer pump outlet) Permanent, no waves, uniform and 100 %
Goes to index 45 (or the outlet index you use)
Function Filter 1
Go to program logic - in my case G23 function : redox 3 (in my case( upwards) AND pump 16
Knit this gate to your ozon socket (in my case socket 46)
Now - ozon will be on if ORP is lower than your nominal value and the program not have shout down socket 45 ("my" skimmer socket) Ozon will be off if your ORP is higher than nominal value and if socket 45 is off. You can shout it off with feed option (shout down filter 1), maintenance option (socket 45 off) or with manual option. Ozon generator will stop as soon socket 45 is not active with help of your programs. But it will not stop if the pump brak down or you pull it out from the socket. To have this to work - you need to wait till the amperage of each socket can manage other sockets. I know they working on that
Warning - I have only test this with the app and in "virtual" mode. The manual switch seems not work if you use GCC manual option but if you use the web interface manual option - it seems to work. But you have to test this by yourself.
I´ll think this can been seen as an "abrovinch" . It is when you use something to do what it not was supposed to do
Sincerely Lasse