How about an option to auto hide the prop gadgets in a list browser? Horiz, Vert, or both. So when there is no need to scroll a direction, remove the prop gadgets for a clean look. When the list gets updated, check if they are needed and if so show them.
LISTBROWSER_AutoHideProps, AH_BOTH, // (AH_VERT, AH_HORIZ, AH_VERT)
I am doing it now manually so it can be done pretty easily.
ListBrowser AutoHideProps
ListBrowser AutoHideProps
Workbench Explorer - A better way to browse drawers