How to Italicise a master that has path and component glyphs

Continuing the discussion from Best way to bulk transform or change metrics in glyphs with components?:

  1. What’s the best way to slant a glyph that has paths and components
  2. What’s the best way to slant a glyph that has only components but is not using automatic alignment (i.e. only move the components but not scale them?)

Can you send me some screenshots of three glyphs you mean?

What it should look like ( but not decomposed)

what it is: