Case 90xt: How to lower arms when Aux-Hyd are engaged

I recently purchased a Case 90xt. It has standard aux-hydraulics (not high flow). I'm wanting to use this machine to dig post holes and drive fence posts on the farm. From what I've seen so far I have a problem. When the aux hydraulics are engaged, I can not lower the bucket. I am hoping that someone knows how to use the aux hydraulics and still operation the arms at a minimum but would like arm and bucket control.



Thanks in advance for any guidance you can give me.

Case 90xt: How to lower arms when Aux-Hyd are engaged