Open each ShapeSheet in the same window: registry value recycleshapesheetwindowUserHKCU\software\policies\microsoft\office\16.0\visio\document

Policy ID: L_OpeneachShapeSheetinthesamewindow
Scope: User Configuration
Supported on: At least Windows Server 2008 R2 or Windows 7
Source: Microsoft 365 Apps / Office Administrative Templates (version 5568.1000)
Category: Microsoft Visio 2016 › Visio Options › Advanced › General Options

Registry

recycleshapesheetwindow

REG_SZUser

HKCU\software\policies\microsoft\office\16.0\visio\document Current key

Enabled value: 1
Disabled value: 0

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\visio\document]

; Options (use only one)
; Enabled
"recycleshapesheetwindow"="1"
; Disabled
"recycleshapesheetwindow"="0"

CMD

:: Options (use only one)

:: Enabled
reg add "HKCU\software\policies\microsoft\office\16.0\visio\document" /v "recycleshapesheetwindow" /t REG_SZ /d 1 /f
:: Disabled
reg add "HKCU\software\policies\microsoft\office\16.0\visio\document" /v "recycleshapesheetwindow" /t REG_SZ /d 0 /f

PowerShell

# Common: create the key
New-Item -Path 'HKCU:\software\policies\microsoft\office\16.0\visio\document' -Force | Out-Null

# Options (use only one)
# Enabled
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\visio\document' -Name 'recycleshapesheetwindow' -PropertyType String -Value '1' -Force | Out-Null
# Disabled
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\visio\document' -Name 'recycleshapesheetwindow' -PropertyType String -Value '0' -Force | Out-Null