G'day everyone

Do you know of tools that remove untranslated strings from a PO file, or
that turns source=target strings in a PO file to source-only strings? I
want to use OmegaT to translate PO files but unfortunately OmegaT puts
the source text in the target field for strings that are not translated,
and that interferes with my other PO tools which regard any string with
content to be a translated string.

Alternatively, is there a tool that can translate a PO file with 100%
matches from a TMX file?

Any ideas?

Thanks
Samuel