Part of improving a product is fixing the little things. The newest version of GP expands the Fiscal Period window size to show a full year. Yep, it’s the little things.
— Read on community.dynamics.com/gp/b/dynamicsgp/posts/microsoft-dynamics-gp—fiscal-period-window-size-modification
Microsoft Dynamics GP – Fiscal Period window size modification – Microsoft Dynamics GP Community
General Ledger & FinancialsMicrosoft & the GP Ecosystem
Archived post from 2019. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.