"]c"   : jump to next change
"[c"   : jump to previous change
"CTRL-W <Right>" or "CTRL-W <Left>" : go to the other window
"do" (diff obtain): get the text of the highlighted block from the other window
"dp" (diff put) : put the text of the highlighted block to the other window
"zo"   : open fold under the cursor
"zc"   : close fold under the cursor
"zr"   : open all folds
":wqa" : write and exit