Reduced possible typo's by using Out-Gridviews

Change the section "5. Run the following PowerShell script to create the Azure Logic app and execution schedule."
Added more automation and added Gridviews instead of manual input from the user
This should reduce errors

Author: michawets

articles/virtual-desktop/virtual-desktop-fall-2019/set-up-scaling-script.md

@@ -168,42 +168,38 @@ Finally, you'll need to create the Azure Logic App and set up an execution sched
 5. Run the following PowerShell script to create the Azure Logic app and execution schedule.
 
      ```powershell
-     $resourceGroupName = Read-Host -Prompt "Enter the name of the resource group for the new Azure Logic App"
+     $aadTenantId = (Get-AzContext).Tenant.Id
+     
+     $azureSubscription = Get-AzSubscription | Out-GridView -PassThru -Title "Select your Azure Subscription"
+     Select-AzSubscription -Subscription $azureSubscription.Id
+     $subscriptionId = $azureSubscription.Id
+     
+     $resourceGroup = Get-AzResourceGroup | Out-GridView -PassThru -Title "Select the resource group for the new Azure Logic App"
+     $resourceGroupName = $resourceGroup.ResourceGroupName
+     $location = $resourceGroup.Location
+     
+     $wvdTenant = Get-RdsTenant | Out-GridView -PassThru -Title "Select your WVD tenant"
+     $tenantName = $wvdTenant.TenantName
+     
+     $wvdHostpool = Get-RdsHostPool -TenantName $wvdTenant.TenantName | Out-GridView -PassThru -Title "Select the host pool you'd like to scale"
+     $hostPoolName = $wvdHostpool.HostPoolName
      
-     $aadTenantId = Read-Host -Prompt "Enter your Azure AD tenant ID"
-
-     $subscriptionId = Read-Host -Prompt "Enter your Azure Subscription ID"
-
-     $tenantName = Read-Host -Prompt "Enter the name of your WVD tenant"
-
-     $hostPoolName = Read-Host -Prompt "Enter the name of the host pool you'd like to scale"
-
      $recurrenceInterval = Read-Host -Prompt "Enter how often you'd like the job to run in minutes, e.g. '15'"
-
      $beginPeakTime = Read-Host -Prompt "Enter the start time for peak hours in local time, e.g. 9:00"
-
      $endPeakTime = Read-Host -Prompt "Enter the end time for peak hours in local time, e.g. 18:00"
-
      $timeDifference = Read-Host -Prompt "Enter the time difference between local time and UTC in hours, e.g. +5:30"
-
      $sessionThresholdPerCPU = Read-Host -Prompt "Enter the maximum number of sessions per CPU that will be used as a threshold to determine when new session host VMs need to be started during peak hours"
-
      $minimumNumberOfRdsh = Read-Host -Prompt "Enter the minimum number of session host VMs to keep running during off-peak hours"
-
      $limitSecondsToForceLogOffUser = Read-Host -Prompt "Enter the number of seconds to wait before automatically signing out users. If set to 0, users will be signed out immediately"
-
      $logOffMessageTitle = Read-Host -Prompt "Enter the title of the message sent to the user before they are forced to sign out"
-
      $logOffMessageBody = Read-Host -Prompt "Enter the body of the message sent to the user before they are forced to sign out"
-
-     $location = Read-Host -Prompt "Enter the name of the Azure region where you will be creating the logic app"
-
-     $connectionAssetName = Read-Host -Prompt "Enter the name of the Azure RunAs connection asset"
-
+     
+     $automationAccount = Get-AzAutomationAccount -ResourceGroupName $resourceGroup.ResourceGroupName | Out-GridView -PassThru
+     $automationAccountName = $automationAccount.AutomationAccountName
+     $automationAccountConnection = Get-AzAutomationConnection -ResourceGroupName $resourceGroup.ResourceGroupName -AutomationAccountName $automationAccount.AutomationAccountName | Out-GridView -PassThru -Title "Select the Azure RunAs connection asset"
+     $connectionAssetName = $automationAccountConnection.Name
+     
      $webHookURI = Read-Host -Prompt "Enter the URI of the WebHook returned by when you created the Azure Automation Account"
-
-     $automationAccountName = Read-Host -Prompt "Enter the name of the Azure Automation Account"
-
      $maintenanceTagName = Read-Host -Prompt "Enter the name of the Tag associated with VMs you don't want to be managed by this scaling tool"
 
      .\createazurelogicapp.ps1 -ResourceGroupName $resourceGroupName `