For users with Windows Vista and above, you may find that the Zoom to Fit All keyboard shortcut (CTRL+SHIFT+0) doesn’t work. The reason for this is that Windows captures the input before it gets sent to Mockups 3 for Desktop, preventing the app from ever seeing it.
Luckily, the fix is super easy.
On Windows Vista and Windows 7
You can follow the steps on Microsoft’s Help Center to disable the Windows shortcut, which will fix the issue in Mockups for Desktop.
On Windows 8 and Windows 10
The option for changing the shortcut is in a different place in Windows 8 and Windows 10. You will need to goto Control Panel > Language > Advance Settings and then find the Change language bar hot keys button.
From there click Change Key Sequence… and then set Switch Keyboard Layout to Not Assigned.