We appreciate your attention to this detail and desire to drag billable items into the bundle. I'm here to help you resolve this, Mapco.

Currently, the feature is unavailable. However, if you want to apply the billable expense to your invoice, you can click the Add button once the Billable expense shows up when you create an invoice. I've added a screenshot for visual reference: 

On the other hand, if you prefer to display limited information about an item on the line item, you can enable the Collapse activity rows option to show only specific item details on your invoice. To achieve this, follow the steps outlined below:

1. Go to the Gear icon, and then select Custom form styles.
2. Either choose an existing template or click New style, then Invoice.
3. Go to the Content tab and select the body of the invoice.
    
4. Click the Show more activity options link on the lower part.
5. Tick the Collapse activity rows field.
6. Click Done.

However, I still recommend sending feedback to help our product team understand how this feature benefits your business. Follow the steps below to submit your suggestions:

1. Navigate to the Gear icon and select Feedback.
2. Type your comments or product suggestions in the provided field. Then click Next and submit feedback.

Your input is valuable and can contribute to enhancing your experience with QuickBooks Online. You can also monitor the progress of feature requests through the QuickBooks Online Feature Requests website.

After this, you may want to review each item of information on your invoice thoroughly. QuickBooks provides a variety of reports where you can filter them so it will only show the right data. For more detailed guidance, refer to the article: Customize Reports in QuickBooks Online.

Let me know if you have any questions regarding billable items displayed on your invoice. I'll be one post away if you need further assistance.