In previous versions, you could click-drag an Adjustment Brush's pin to increase or decrease the effect globally (all the brush's sliders non-zero sliders would increase/decrease in unison). In LR6, dragging the pin moves the mask. The LR Queen says that you can hold Opt/Alt to get the old global adjustment behavio(u)r. I tried it and it worked, but only while still in Develop on the same picture after adding the Adj Brush -- after going to another picture in Develop or to another module and returning, holding Opt when dragging the pin show the global adjust cursor (bar with arrows pointing left and right), but it doesn't change the settings. I'd like to know if anyone else see's this so I can decide whether to attempt to let Adobe know. BTW: it also doesn't work for me with the Graduated Filter tool. GPU on or off doesn't make a difference.