We have had people entering production data into our test instance and it would be very helpful to hide the test instance on a per user setting. I think that you could add a security setting for users to or hide the test instance of NXT. This would help us eliminate mistakenly entered into the wrong instance. VIce versa might also be helpful when new users are being trained it also might be helpful to hide the production instance of NXT.

It also would be interesting/nice to use a different color scheme / watermark to tell users that they are in the test instance of NXT. Thanks for listening.