Great question! There are actually two "Create New Folder" buttons in the Files section, which has caused some confusion for other users too. Here's the key:

• The top green button creates a folder outside your current location (at the root level)
• The "Create Folder" button lower on the page (within the folder view) creates a subfolder inside the folder you're currently navigating

So to create a subfolder under the Deal Memo Export Folder:
1. Navigate into the Deal Memo Export Folder
2. Use the lower "Create Folder" button within that folder view, not the top green one

This should place the new folder correctly within the hierarchy. Let me know if you're still having trouble and I'll escalate it for you!