Can you define order_by_field by multiple?

[zfang]

I have a dimension of type string that contains multiple numbers inside of the string and I'd like to order the dimension according to those numbers. I extracted them as dimensions of type number.

Example:

string dimension: state1.state9.state2

number1 dimension: 1

number2 dimension: 9

number3 dimension: 2

Can I order by number1, number2 and number3, in that order?