Hey Howdy Hey Kathryn and welcome to planDisney!
Well, Kathryn, it sounds like your Magical vacation later this summer will be a little extra Magical with your brother joining you for your day in Disney's Hollywood Studios! Thank you for your question about
Individual Lightning Lanes for the whole group. I will be happy to give you more information about the details.
At this time, Individual Lightning Lane purchases are available for Guests staying with Disney Resorts Collection or a qualifying resort starting at 7:00 AM on the day of your park visit. All other Guests staying offsite can make their purchase starting when the park officially opens. I am sorry to say that your brother will only be able to make his selection after the parks open. Not to worry though, there are a couple of ways to experience this attraction.
Star Wars: Rise of the Resistance is an amazing thrill ride you won't experience anywhere else in the galaxy! Currently, this attraction is open for the traditional stand-by queue or, as you mentioned, by Individual Lightning Lane. You can always try to get to the parks as they open to hop in the stand-by line which may be short starting the day. You can also try to get there early and if the line is too long, then you can purchase Individual Lightning Lanes together while you enjoy so many of the other attractions throughout the park.
I hope you can experience this exciting attraction together on your upcoming trip. If you have any further questions, please feel free to reach back out and let us know, we are always happy to help!
Have a Magical day,
Nick