...but it is silent on sustaining focuses.
You just activate/trigger/use the weapon focus (just like you activate/trigger/use a critter power)
After that they stay active without requiring a that you pay them attention (just like a critter power)
No matter if you leave the physical plane or not (...just like a critter power?)
And you can also choose when to deactivate them (just like a critter power).
No matter if you are are on the physical plane or not (...just like a critter power?)
Yes, but the question isn't can you keep sustaining a spell when going over to the astral due to some concentration issue, its does your going to the astral break your tie to the psychical plane enough that your spell is no longer working. Sustaining focuses go down when you go to sleep so they need some conscious level from you to keep active. So if the rule is you have a connection to your body, its enough to maintain concentration on spells kept active through a focus but not through focused concentration or just normal sustaining you'd think they would clarify it, as I said they were willing to clarify how a weapon focus works. So clarifying a how a focus works on the astral is something they are willing to do. And this isn't just a catalyst editing thing, its been this way since 1e where editing was a bit more robust.
They don't talk about not being able to sustain spells when going to the astral because you can.
The more interesting question to me is since physical spells don't work in the astral what happens when a physical spell interacts with your body, I'm thinking specifically the increase/decrease attribute spells. Would the spell still be on you but the effect drops in the astral as its a psychical spell, or would you gain the benefit of the spell in the astral as the psychical spell is effecting your physical body and you are indirectly gaining the boost in the astral?
Astral combat might actually be viable if you can beef up your key attributes to 9+