CCGbank is an automatic conversion of the Penn Treebank to Combinatory Categorial Grammar (CCG). We present two extensions to CCGbank which involve manipulating its derivation and category structure. We discuss approaches for the automatic re-insertion of removed quote symbols and evaluate their impact on the performance of the C&C CCG parser. We also analyse CCGbank to extract a multi-modal CCG lexicon, which will allow the removal of hardcoded language-specific constraints from the C&C parser, granting benefits to parsing speed and accuracy.