I have imported a new dimension into my model and before I go through and turn off the default summarization for all the numeric columns, I would love to know whether there is a way of doing this globally!
@Jamie One way is to create a calculation group in the model using Tabular Editor and then as a side effect default summarization is disabled for forever. Even a Calculation Group shell will do the trick.
Brilliant, I hoped there would be something like that. Another reason to get into Calculation Groups!