Hiding 'Count' column in v7

Where has this setting been buried then?

It was such an easy thing to do in previous versions. It doesn’t seem to be in the Overrides section. There’s something in the Transform tab called Organize Fields with a sub-text that says

Allows the user to re-order, hide, or rename fields / columns. Useful when data source doesn’t allow overrides for visualizing data.

For some reason, clicking on this does nothing whatsoever.

There was a bug in v7 which breaks the transformations from working which is why it does nothing. I am not sure which version it is or will be fixed in. If you download the latest nightly build it will be fixed there. The latest release is 7.0.3 but I don’t know if it was fixed in that, but you could try that first?