[TxMt] multiple folding Markers?

I'd like to make a bundle with PL/SQL syntax (didn't look like anyone did that yet), but I don't see how to specify pairs of folding markers. Here's an example of what's wrong:

PropertyList-Old.plist has these lines: foldingStartMarker = "(\{|\()"; foldingStopMarker = "(\}|\))";

But what causes folds on bad blocks like this: { # curly brace ) # parenthesis

I'd like to do blocks like these: IS -> END; IF -> END IF; ( -> )

etc.

Possible? I see "pairs" of other things are being handled (e.g.highlightPairs), perhaps we could do this too!

prl