Edit C:\Windows\System32\ServerManagerInternal\RDManagement\Set-RDPGeneralSetting.xaml

<Activity mc:Ignorable="sap sads" x:Class="Microsoft.RemoteDesktopServices.Workflow.SetGeneralRDPSetting" this:SetGeneralRDPSetting.RedirectionServer="[Nothing]" this:SetGeneralRDPSetting.AlternateServer="[Nothing]"
 xmlns="http://schemas.microsoft.com/netfx/2009/xaml/activities"
 xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
 xmlns:mpa="clr-namespace:Microsoft.PowerShell.Activities;assembly=Microsoft.PowerShell.Activities"
 xmlns:mpma="clr-namespace:Microsoft.PowerShell.Management.Activities;assembly=Microsoft.PowerShell.Management.Activities"
 xmlns:mpua="clr-namespace:Microsoft.PowerShell.Utility.Activities;assembly=Microsoft.PowerShell.Utility.Activities"
 xmlns:mrma="clr-namespace:Microsoft.RemoteDesktopServices.Management.Activities;assembly=Microsoft.RemoteDesktopServices.Management.Activities"
 xmlns:mrmc="clr-namespace:Microsoft.RemoteDesktopServices.Management.Cmdlets;assembly=Microsoft.RemoteDesktopServices.Management.Activities"
 xmlns:mv="clr-namespace:Microsoft.VisualBasic;assembly=System"
 xmlns:mva="clr-namespace:Microsoft.VisualBasic.Activities;assembly=System.Activities"
 xmlns:s="clr-namespace:System;assembly=System.Core"
 xmlns:s1="clr-namespace:System;assembly=System"
 xmlns:s2="clr-namespace:System;assembly=System.ServiceModel"
 xmlns:s3="clr-namespace:System;assembly=mscorlib"
 xmlns:sa="clr-namespace:System.Activities;assembly=System.Activities"
 xmlns:sad="clr-namespace:System.Activities.Debugger;assembly=System.Activities"
 xmlns:sads="http://schemas.microsoft.com/netfx/2010/xaml/activities/debugger"
 xmlns:sap="http://schemas.microsoft.com/netfx/2009/xaml/activities/presentation"
 xmlns:sc="clr-namespace:System.Collections;assembly=mscorlib"
 xmlns:scg="clr-namespace:System.Collections.Generic;assembly=mscorlib"
 xmlns:sm="clr-namespace:System.Management;assembly=System.Management"
 xmlns:sma="clr-namespace:System.Management.Automation;assembly=System.Management.Automation"
 xmlns:this="clr-namespace:Microsoft.RemoteDesktopServices.Workflow"
 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <x:Members>
    <x:Property Name="RedirectionServer" Type="InArgument(x:String)" />
    <x:Property Name="AlternateServer" Type="InArgument(x:String)" />
    <x:Property Name="RDMSServer" Type="InArgument(x:String)">
      <x:Property.Attributes>
        <RequiredArgumentAttribute />
      </x:Property.Attributes>
    </x:Property>
  </x:Members>
  <sap:VirtualizedContainerService.HintSize>570,365</sap:VirtualizedContainerService.HintSize>
  <mva:VisualBasic.Settings>Assembly references and imported namespaces for internal implementation</mva:VisualBasic.Settings>
  <sap:WorkflowViewStateService.ViewState>
    <scg:Dictionary x:TypeArguments="x:String, x:Object">
      <x:Boolean x:Key="ShouldExpandAll">False</x:Boolean>
      <x:Boolean x:Key="ShouldCollapseAll">True</x:Boolean>
    </scg:Dictionary>
  </sap:WorkflowViewStateService.ViewState>
  <Sequence DisplayName="SetGeneralRDPSetting" sap:VirtualizedContainerService.HintSize="530,325">
    <Sequence.Variables>
      <Variable x:TypeArguments="sma:PSDataCollection(sma:PSObject)" Name="generalSettingCollection" />
      <Variable x:TypeArguments="sma:PSDataCollection(sma:ErrorRecord)" Default="[New PSDataCollection(Of ErrorRecord)()]" Name="psError" />
    </Sequence.Variables>
    <sap:WorkflowViewStateService.ViewState>
      <scg:Dictionary x:TypeArguments="x:String, x:Object">
        <x:Boolean x:Key="IsExpanded">True</x:Boolean>
      </scg:Dictionary>
    </sap:WorkflowViewStateService.ViewState>
    <mpa:InlineScript Command="$optionalParams = @{}&#xD;&#xA;if ($using:RedirectionServer) {$optionalParams['RedirectionServer'] = $using:RedirectionServer}&#xD;&#xA;if ($using:AlternateServer) {$optionalParams['AlternateServer'] = $using:AlternateServer}&#xD;&#xA;&#xD;&#xA;import-module $env:windir\System32\ServerManagerInternal\rdmanagement&#xD;&#xA;Set-RDPGeneral -ManagementServer $using:RDMSServer @optionalParams" DisplayName="Set redirection server and alternate server" sap:VirtualizedContainerService.HintSize="508,139">
      <sap:WorkflowViewStateService.ViewState>
        <scg:Dictionary x:TypeArguments="x:String, x:Object">
          <x:Boolean x:Key="IsPinned">True</x:Boolean>
        </scg:Dictionary>
      </sap:WorkflowViewStateService.ViewState>
    </mpa:InlineScript>
    <mpua:WriteVerbose DisplayName="Verbose: Done" sap:VirtualizedContainerService.HintSize="508,22" Message="Done!" />
  </Sequence>
</Activity>

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