You can define your own reports for use with our DoubleClick Bid Manager/DV360 connector. You first create a report in your DV360 account. You'll find the option to create new reports in DV360 under Insights > Reports > Offline Reporting > Create New Report.
To make the report works with Funnel, make sure that scheduling is turned off, "File Type" is set to "CSV", and include "Date" as a dimension. You can read more about what metrics and dimensions you can include in your report here.
Once you've finished your report, create a new connection to DoubleClick Bid Manager. In the connect dialog, choose "Custom Report", and submit the ID of the report you created as Report ID.