Nope. I'm certainly not the only customer who needs to set their home battery so that it won't discharge into the car while the car is charging, even though John thinks I'm nuts to be happy with this setup. It's set for the entire normal off-peak period so if Octopus gives me slots in that period then I don't need to do anything. At first that's what happened.
If they give me a slot in the peak-rate period, I simply have to set the battery accordingly. But when I did that, I then discovered that the car wasn't charging, because the schedule had changed. Not good. Then the following morning, quite unexpectedly, they stuck in a slot from 8.00 to 8.30 am. Fortunately for me the car only charged for about five minutes of that because it was already virtually full, but I still lost some home battery charge. It was a very dull morning and there wasn't enough solar to recharge the battery. If it had gone the full half-hour I could have lost enough charge for this to be a problem in the later part of the evening.
When I explained this in an email to Octopus I got this patronising reply saying that I misunderstood how it worked and that I should set my home battery to charge from 11.30 to 5.30. Which it is already set to do, obviously. I emailed them back re-explaining the issue, twice, but got no further reply.