streamlining or automating intercompany transactions?

Has anyone come across any means, apps, integrations, hacks or tips/tricks in QBO for streamlining intercompany transactions? I reconcile transactions between a few associated companies each month and always strikes me as a job for software that posting a bank download to Debit Cash Credit Due to/from (for simple cash transfers) or, say, paying expenses of one company from the bank account of a sister company could somehow trigger matching in another company's bank downloads (if that makes sense)? I've been told Sage300cloud  has an add-on for this but I've never used it nor talked to anyone that's used it.