Ascribe allows you to track donation made anonymously. To add an anonymous donation to a batch, first open up the contribution data entry panel.
To attribute this donation to the anonymous donor, click on the Make anonymous button found just under the search box. You may also press the Control and Y keys simultaneously on your keyboard shortcuts.
The form will automatically focus on the amount of the donation so you can start typing in the amount without further need to use your mouse.
Incidentally, you can click on the Anonymous Person link, located on the upper left, to launch a new browser tab to view a history of all anonymous donations.