Possible to restrict number of sorts by N level?

tate

Hello all,

I want to restrict number of sort by two level,
Please tell me how to configure.

Our Use Case is like below
1. Click "age" -> sort by age
2. Shift + Click "Office" -> sort by age and Office
3. Shift + Click "Position" -> sort by Office and Position ("age"　setting is ignored )

Here is live demo,
http://live.datatables.net/zagizuha/1/edit

Best Regards,
Tate

tate

Nobody an idea? Is this not possible?