That will only work, if the properties are visible and/or selected. If the same properties are visible on different layers and al lthe leayers are selected, updating one layer will set the values on otehrs - scrubbing will offset the values by the same amount, typing in a value will set all values to the same. Conversely, the same logic applies, if you select different properties on different layers that accept the same kind of values.
As Mylenium pointed out, you have to have the target properties selected. Instead of having the layer itself selected ("White Solid 6"), select the the top node (i.e, "Mask 1"), or, the property (i.e., "Mask Feather").