Yes, you can delete individual products or batches of products.
You can delete individual items or pages of items by selecting the box beside the item(s) and then selecting 'Batch Delete.
If you have multiple pages of items, you may have to do this multiple times, or you can contact the support team to clear out your entire catalogue.
Once these items are deleted, they will no longer appear in your product catalogue but will appear in your historical reports.
Watch the video below to see this process.