When creating presentations, I often have a sequence of slides which continue each other regarding the same subject, with the same title, except that the first slide has: "My Title", and all the rest have "My Title (cont.)" with the parenthesized text also in a smaller font size. It would be useful if Impress allowed marking a set of slides for title-continuation from the first slide, with auto-generation of "(cont.)", or some other embelishment such as "(i / m)" or "(i of m) with i being the index of the slide within the short sequence and m being its length.
Such automatic would need fields comparable with those in Writer. Impress has only a very small set of fields. It is a valid enhancement request.