How do I create a duplicate trips for different dates

Welcome to the QuickBooks Community, @marksyard1.

You'll have to manually add the duplicate trip and enter the dates from there. QuickBooks Self-Employed (QBSE) will help you keep track of your business or even personal trips. Let me guide you how:

1. Go to Miles on the left side menu.
2. Tick the Add trip button. 
3. Enter the distance in the Add miles field. 
4. Enter the Date.
5. Tap the Pencil icon to edit the start and end addresses.
6. Add a Trip purpose note.
7. Press Save.

For more details about this one, check out this article: Manually add trips to track mileage in QuickBooks Self-Employed.

QuickBooks also makes it possible to have detailed info on your business and personal trips for a specific period. To get started, simply go to the Reports menu and look for Mileage log then, select the View button. 

You might also want to utilize the QuickBooks Self-Employed app for automatic tracking of your trips: Automatically track mileage in QuickBooks Self-Employed.

Just in case you turn on the Auto- tracking mileage feature and you encounter problems tracking your work trips to your mobile devices, refer to these articles to troubleshoot the issue:

• Fix mileage tracking issues in QuickBooks Self-Employed for Android
• Fix mileage tracking issues in QuickBooks Self-Employed for iOS

I encourage getting back on this thread if you'll need further assistance in recording all the transactions. I'm determined to ensure everything is recorded accurately. Keep safe, @marksyard1.