This feature request proposes the addition of a keyboard shortcut in Acrobat to promote/demote bookmark levels. Currently, demoting a bookmark can be done easily by dragging it to a lower level, but promoting it requires a two-step process. With this new shortcut, users could efficiently reorganize their bookmarks by quickly moving them up or down the hierarchy. This feature would be particularly useful when dealing with scanned files that lack structure information, but require a hierarchical set of bookmarks for easy navigation.