The GP team has more info on what may be sleeper hit of GP 2013 R2. This wasn’t a “big rock” in terms of development but it is a big deal. Checkout Microsoft Dynamics GP 2013 R2 Feature of the Day: Copy and Paste to General Ledger Journal Entry
Microsoft Dynamics GP 2013 R2 Feature of the Day: Copy and Paste to General Ledger Journal Entry – Inside Microsoft Dynamics GP
General Ledger & FinancialsTips & Hidden FeaturesGP 2013
Archived post from 2014. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.