> For the complete documentation index, see [llms.txt](https://help.hummingbird.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.hummingbird.co/features/how-can-i-add-information-to-a-case.md). # How can I add information to a case? After opening a case, click on the "Add to Case" button to add additional information to the case.

You can directly search for an existing subject by entering some identifying information here:

Or click "Create New" in order to add a new review, transactions, financial institutions, people, business, product, bank account, payment card, crypto address, device, or request.

To import data from a structured data document, you should: 1. Select the "Custom Import" option from the drop-down shown when you click "Create New". 2. Drag-and-drop a spreadsheet (into the “....or import a file” area in the pop-up screen) or copy-paste the data from a spreadsheet 3. Click on “Import” 4. Verify the information shown to you 5. Click on “Complete” {% hint style="info" %} You can add an "unknown subject" by choosing Person from the drop-down menu. Click on the "Enter manually" button, and then click on the "Add unknown subject" button without filling out the form. {% endhint %}