[nakkiel]

Have you tried to use a Compose Key on X servers? You can use it as follows:

    Compose-Key e ' => é
    Compose-Key e ` => è
    Compose-Key e " => ë
    Compose-Key e ^ => ê

I wonder how this is done on Mac?

[jonsen]

  Option-e e => é
  Option-` e => è
  Option-u e => ë
  Option-i e => ê