In version 4.6 and later, it is possible to add gifts to an existing batch from the review screen.
If you would like to create a template so that your gift batches are always formatted the same way, you can use this feature to add your gifts to an existing batch.
In order to preserve your template, open the Batch area before you open Importacular. Create a new gift batch by copying your template.
Then, open Importacular and process your data with your template. When you are ready to import, select the option to "Add Gifts to an Existing Batch" and select the gift batch that you copied from your template.