Welcome aboard to the Community, @shirley-miller30.
Right now, the ability to separate the Repairs and Maintenance category is unavailable in QuickBooks Self-Employed (QBSE). The categories used by the program are based on the IRS to ensure your Estimated Taxes are accurate.
For future reference, visit the following article about the categories. It contains the guidance you need with choosing the right option for your transactions:
I want to make sure this is taken care of for you. If you have any other concerns, post a comment below. I’ll pop right back in to assist further. Have a good one.