Adjust Metrics was created in 2012 by David Jonathan Ross for Font Bureau. It may or may not work the way you want it to.

Adjust both margins, left margin, or right margin...

To current glyph selection or all glyphs

In current font or a selection of opened fonts

Adjust components (on by default):

If 'A' is selected but not 'Aacute', 'Aacute' will be shifted back so it does not affect the original position.

Adjust Comps with Selected (off by default):

If 'A' is selected, also transform 'Aacute' et. al.

This is released under the MIT license. See the the html file inside the extension for more information.