Adding to the thread, it would be useful to add admin controls to the Data Dictionary.
For example, as an admin, I would like to limit certain parameters in the UI, so that end-users are only presented with a simple and easy to understand list of dimensions/metrics.
I’m aware of the view options dropdown in the data dictionary, but I would like to take it a step forward and unilaterally decide which fields end-users get to see or choose from.
Also, +1 for extended definitions that live in the data dictionary, not necessarily in the tooltip description.