[knot-dns-users] KSK and ZKS roll-overs on schedule

Hi, I have another requirement for a capability test. I need to perform ZSK and KSK rollovers on specific times. Something like KSK rollover after exactly 60 hours. Or ZSK rollover after exactly 24 hours and another one after another 24 hours. And so on... One additional requirement is that I need to pre-generate the keys. I was thinking of doing it with manual key management enabled and to use the keymgr tool for it. But I'm unsure about how to set the key attributes correctly an in what order. At what point I have to set the new key to active, and how can I remove the old key, and so on... I have never done it manually as I normally use Knots automatic key management. Is the "knotc zone-key-rollover" useful here, or is it only useful in an automatic key management set up? I really appreciate any help here! Thanks a lot, Thomas