Is there a quick way to harmonize hierarchy amongst selected items in the Binder. So that children files or folders would harmonize with the level of the parent file.

What do you mean by harmonise? Do you mean indent to the same level? If so, you can either drag and drop or use the Move menu comments (Ctrl-Cmd-Left/Right/Up/Down).

All the best,

perfect. thanks. Although when i try to use the short cut I get a message from an applicatoin called Mercury Mover that seems to have installed itself somewhere without my consent. But Move works. Thanks.