Thank you for checking in with us. Allow me to share some information regarding with your concern.
I can see how changing the territory for batches of transactions would be beneficial to you. However, this feature isn't currently offered in QuickBooks Online.
I recommend sending this request straight to our product engineers through feedback. Your feedback and product suggestions will be used for coaching for our product developers. As a team with a massive road-map, we have to pick new features based on the value they’ll add to the most users possible.
We aren't able to tell when a feature will be available. We share recent happenings and future developments on our blog. Through this, you're able to get the latest news about QuickBooks and what our Product Care Team is working on. You can check out this link: https://quickbooks.intuit.com/blog/.
I wish you and your business continued success. I'm here if you have any other questions.