We all know that to apply some modified parameters entered in the Page Format window, an extra step is needed.
Layout Tool -> Menu > Redefine Pages -> ...
This slows us down, especially if some changes are to be made several times.
Couldn't you consider to add an "Apply" (or "Redefine pages") button right inside the Page Format window ? This would be a time saver !
Finale 25.5. MacOs 10.11.6