Having multiple account questions

[esdftom]

Been playing for a while now and have been creating multiple characters on the same account. Recently decided to create a new alt on a newly created login account (that is linked my original p99 website account) in hopes that in the future my wife would take over that character once it got closer to my mains lvl. Before I start lvling this alt I just want to make sure that I can have a user on both of these accounts simultaneously even though they are under the same p99 website login? I understand that if we play from the same location we would need an IP exemption. I'm just curious if she would need to make a whole new p99 website login or can we share my current account and just create multiple login accounts?

Thanks!