The only way I know of to do this is to create titles and add them.
It's a LOT of work.
Perhaps I might have to write a utility to actually use an image library to create each frame (like LibPNG) which I could then import as an overlay...literally making the plain text into a PGS overlay.
Natively in Premiere Pro it's not possible, so there are four basic options:
- Use an external subtitler program to render the title data into an AVI file (or a series of images & and EDL), then drop that as a new layer. Tools include Lemony and Belle Nuit.
- Use a plugin for Premiere, such as EZTitles.
- Automate the titles into an After Effects project and add the comp to your Premiere project - lots of example scripts out there, Google for "AE subtitle script".
- Manually create each card as a static title in Premiere.
1 and 2 are of course the easiest, but some of the sofware involved is very expensive. 3 is free, but will require some massaging of your title data and can't easily cope with things like per-card formatting (but you can dynamically-link the AE comp so it's easy to make changes). It goes without saying that 4 is like pulling teeth.