How to disable Windows 10 lock screen password on IDLE only

Using gpedit, set the "Allow users to select when a password is required when resuming from connected standby" policy to "Enabled" under "Computer\Administrative Templates\System\Logon\"

OR

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\System] "AllowDomainDelayLock"=dword:00000001

reference: https://social.technet.microsoft.com/forums/windows/en-US/20847146-a4ff-4b88-9bab-ccc70b5d1554/do-not-require-password-after-display-off

In my case, after enabling this policy, the screen just stays on (ignoring my screen timeout setting) presumably until the sleep timer triggers. I am unable to find a location to set the 'Require a Password after the display is off for...' timer that was previously available in Windows 8.1 Accounts>Sign-in Options.