is there a way to edit or create/download new brushes for painter classic? or is that the domain of photoshop?

i have a feeling this is why painter classic is shipped with wacoms, its a very slimmed down version.

also, any advice on speedingup the watercolour brushes would be appreciated, aside from buying a new computer :-p

no hurry for these answers, i'm just curious

thanks

Niall