Hi@EricHulshof,
Based on the issue that you mentioned, do you want to set the default value and allow empty selection within a Dropdown?
I have a test on my side, please take a try as below.
- Set the AllowEmptySelection property as:
true
- Set the Items property of the Dropdown as:
[@PowerBIIntegration].Data.Name
- Set the Default property of the first DropDown:
First([@PowerBIIntegration].Data.Name).Value /The first Dropdown
Last(FirstN([@PowerBIIntegration].Data.Name,2)).Value /The second Dropdown
Last(FirstN([@PowerBIIntegration].Data.Name,3)).Value /The third Dropdown
…
Last(FirstN([@PowerBIIntegration].Data.Name,10)).Value /The tenth Dropdown
Note: If you want to set the default value of each Dropdown, you just need to set the Default property of each Dropdown as the above. Make sure that you should make the data type matched as a Text value. To solve this, you need to add “.Value” behind the Last().
You can check the attachment for reference.

Best Regards,
Qi