I guess it could be done by macro:

– start “record macro”,
– replace one special character to the corresponding latin character (replace all)
– stop record
– “edit” the macro recored, copy all code generated by emeditor and paste it else where.
– repeat the procedure above with each special character you want to replace, except append the generated macro code to the first one.
– save the cumulated code to a single macro, put it in toolbar or asign it a short-cut key.

Best regards! 🙂