I appreciate you posting here in the QuickBooks Community, @AmandaC67. Let me share more information about workpapers in QBO.
I know the importance of having the FRS105 for the MTD ITSA. However, these accounts will depend on what industry you have chosen when you set up your account.
In the meantime, we can only choose the LTD company for the workpapers. Rest assured that our team is working on the process to make your experience easier.
Additionally, let me share this article to export your clients' tax information: Use Workpapers to export your clients’ tax info.
Please don't hesitate to leave a reply if you still have questions about your annual workpapers. Take care.