Generalisation whilst keeping fill

[MartenMiddeldorp]

I have dissolved six position postal code areas (~ street part level) to create four position postal code areas (~ neighbourhoud level). Naturally, this has resulted in some strange shapes and multipart features (see below; selected area is a single feature).

I want to generalise these features and make them singlepart features, without losing the fact that the individual shapes share boundaries. Is there a way to do this?

[MartenMiddeldorp]

That is already what I feared. I will see what I can do.

Thanks to everyone for their answers!

(I don't know what is usual behaviour here: closing the conversation as 'answered', although my question is not answered, or leaving it open for an undetermined 'eternity'?)

[XanderBakker]

Looking at it again, Simplify Polygon (Cartography) will probably get you pretty far. This tool requires an Standard license.

Although you may have to do something with the multiparts first...