Update Set-OrganizationConfig.md

FindTimeLockPollForAttendeesEnabled param added per email request

Author: chrisda

exchange/exchange-ps/exchange/Set-OrganizationConfig.md

@@ -83,6 +83,7 @@ Set-OrganizationConfig -ShortenEventScopeDefault <ShortenEventScopeMode>
  [-ExternalInOutlookEnabled <Boolean>]
  [-FindTimeAttendeeAuthenticationEnabled <Boolean>]
  [-FindTimeAutoScheduleDisabled <Boolean>]
+ [-FindTimeLockPollForAttendeesEnabled <Boolean>]
  [-FindTimeOnlineMeetingOptionDisabled <Boolean>]
  [-FocusedInboxOn <Boolean>]
  [-HierarchicalAddressBookRoot <UserContactGroupIdParameter>]
@@ -1876,6 +1877,29 @@ Accept pipeline input: False
 Accept wildcard characters: False
 ```
 
+### -FindTimeLockPollForAttendeesEnabled
+This parameter is available only in the cloud-based service.
+
+The FindTimeLockPollForAttendeesEnabled controls whether the **Lock poll for attendees** setting is on. Valid values are:
+
+- $true: **Lock poll for attendees** is on. Attendees will not be able to suggest new times or edit other attendees.
+- $false: **Lock poll for attendees** is off. Attendees can suggest new times.
+
+For more information about FindTime, see [How to create a FindTime poll](https://support.microsoft.com/office/4dc806ed-fde3-4ea7-8c5e-b5d1fddab4a6).
+
+```yaml
+Type: Boolean
+Parameter Sets: ShortenEventScopeParameter
+Aliases:
+Applicable: Exchange Online
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
 ### -FindTimeOnlineMeetingOptionDisabled
 This parameter is available only in the cloud-based service.