I am preparing a linked return with my spouse. I have claimed donations on my tax return, however the software has put the donations credit on my spouse's return. How do I change that?

Donations and gifts credit go on the tax return with the higher income to increase the non-refundable tax credits. If you want to change that, you can to 'Optimization' on the menu bar and click on 'Refund Maximizer'. Put the donations amount under the column 'Suggested' for the taxpayer who wants to claim the credit and press on the 'Tab' key. Then, click on 'Accept' on the pop-up window.