in the menu click at "Edit" -> "Component Display...". A new form will show up. Select one transistor (type) in the schematic and go back to the new form. Check "parameter" there and you'll be able to edit the annotated values of the selected device type for editing the schematic (--> parameter). Setting a display value to "none" will result in one line displayed less.
Editing the "operating point" parameters will change the parameters shown after running a simulation and clicking to "Results" --> "annotate" --> e.g. "DC
Operating Point" in ADE.