Most Recently Used Template List Length
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKCU
software\policies\microsoft\office\16.0\common\general Options
filenewmrumaxitems decimal
- range 0-25 Description
This setting determines the length of the recently used templates list in the New Document dialog box. The maximum value is 25 and the minimum value is 0. This setting applies to Word, Powerpoint, and Excel.