Upload/Datasource experience: consider a dialog popup after finishing upload to hint the user to analyze the new datasource

[rpbouman]

Right now, the upload experience is not as intuitive as it should be.
Users manage to upload files, and they succeed, but then are surprised that nothing happens after upload.

It would be good to have a popup after upload to nudge the users in the right direction.
It should probably be configurable whether such a popup should always appear.
Perhaps, multiple actions are possible after upload, and it should be configurable what action to take.