one of the stepdaughter's devices? or all three of yours? and a separate subscription is acquired for the stepdaughter?
and you can take a screenshot for clarity and clarification, what is it?
if she has enough 15 accounts, then you can use the free version of the manager https://support.kaspersky.com/14247, if she doesn’t need synchronization (between several devices), then she can not connect the manager to the account https://support.kaspersky.com/14261
I have it for 5 devices. I have it on my computer and my 2 cell phones. Under KPM, it says "2 separate users". That is what I was referring to on that.