I just bought a ASRX sampler and enjoying it so far. But as a user of a ASR-10 I find the ASRX a tad confusing at times. Can some ASRX user please tell me how to access and change the filters on the machine. In the manual it says that I need to press the Pad/Edit button twice to enter the filter section but nothing happens when I press it the second and third time. Have I missed something here?