Quick questions on the court packing

With the nuclear option being used, and the plan to pack the DC Circuit starting, can someone answer this. Is Obama adding more judges or replacing empty seats? I read somewhere these are new seats. And, since we are working from continuing resolutions and not a budget, wouldn’t that mean new lines in the budget to fund the judges and the support staff for the seats?
If that (new seats) is the situation is the ball in the court of the House to fund those positions?