Change the properties of the same type of feedbacks and commands.

I'd like to have the ability to change settings (except for the name property) of the some feedbacks of one type or commands at one time, e.g. to choose some feedbacks in the driver for DuoTecno and to change the setting UnitType for all the chosen at one time. At present when choosing some feedbacks or commands when pressing Shift, the window of settings disappears in PROPERTIES tab.