How do I set the project default Maximum Bytes Billed in BigQuery?

Question

In the BigQuery UI, if I click Show Options there is a field called Maximum Bytes Billed - which is an awesome way to make sure you don't fat finger an expensive query. When you don't enter a value in that field it says "project default". How do I set that project default? I can't find it anywhere.

Also, how does the project default work? Is it a hard cap that nobody can go over, or if someone enters a higher value in that field can they override the default? Does it apply to all queries from any source or only from the BigQuery UI?

Thanks.

Answer 1

Got official confirmation from Google that this is not possible.