Prompt User to Select/Create Datasource Item when inserting Rendering via Page Editor

Question

Using Sitecore 8.1 - I used these instructions to be open the datasource item create/select when adding a rendering via the page editor but only the Control Properties comes up. I've managed to successfully do this in 7.5 but nothing happens in 8.1.

Is this an issue for anyone else?

Thanks,

Dan

Answer 1

Found the issue - the 'Data Source' underneath the Data tab must be empty while 'Datasource Location' and 'Datasource Template' have to be populated.