You could maybe use AltGr combined with dead keys to accomplish that, but I suppose it would be limited to combinations of two keys (plus the modifier). EDIT:

You could maybe use AltGr combined with dead keys to accomplish that, but I suppose it would be limited to combinations of two keys (plus the modifier). EDIT: Actually, it seems Windows supports chained dead keys, so I think you could accomplish longer sequences with a plain old Windows keyboard layout definition too. But that's not supported with MSKLC.