Updates to UnScopedTopLevel parameter

Per Issue #1741.

Author: chrisda

exchange/exchange-ps/exchange/role-based-access-control/Add-ManagementRoleEntry.md

@@ -223,9 +223,11 @@ This parameter is available on in on-premises Exchange.
 
 By default, this parameter is only available in the UnScoped Role Management role, and that role isn't assigned to any role groups. To use this parameter, you need to add the UnScoped Role Management role to a role group (for example, to the Organization Management role group). For more information, see the "Add a role to a role group" section in Manage role groups (https://technet.microsoft.com/library/jj657480.aspx).
 
-The UnScopedTopLevel switch specifies that you're adding a custom script or non-Exchange cmdlet to an unscoped top-level management role. You don't need to specify a value with this switch.
+The UnScopedTopLevel switch specifies that you're adding the role entry to an unscoped top-level management role. You don't need to specify a value with this switch.
 
-You can only use this switch when you add a role entry to an unscoped top-level role. When you use this switch, you can't use the ParentRoleEntry parameter.
+Unscoped top-level management roles can only contain custom scripts or non-Exchange cmdlets. For more information, see Create an unscoped role(https://technet.microsoft.com/library/dd876886.aspx).
+
+You can't use this switch with the ParentRoleEntry parameter.
 
 ```yaml
 Type: SwitchParameter

exchange/exchange-ps/exchange/role-based-access-control/New-ManagementRole.md

@@ -106,9 +106,11 @@ This parameter is available on in on-premises Exchange.
 
 By default, this parameter is only available in the UnScoped Role Management role, and that role isn't assigned to any role groups. To use this parameter, you need to add the UnScoped Role Management role to a role group (for example, to the Organization Management role group). For more information, see the "Add a role to a role group" section in Manage role groups (https://technet.microsoft.com/library/jj657480.aspx).
 
-The UnScopedTopLevel switch specifies that the role should be a custom, empty role. You don't need to specify a value with this switch.
+The UnScopedTopLevel switch specifies that the role new role is an unscoped top-level management role (a custom, empty role). You don't need to specify a value with this switch.
 
-If you use this switch, you can't use the Parent parameter.
+You can only add custom scripts or non-Exchange cmdlets to an unscoped top-level management role. For more information, see Create an unscoped role(https://technet.microsoft.com/library/dd876886.aspx).
+
+You can't use this switch with the Parent parameter.
 
 ```yaml
 Type: SwitchParameter

exchange/exchange-ps/exchange/role-based-access-control/New-ManagementRoleAssignment.md

@@ -404,7 +404,9 @@ This parameter is available on in on-premises Exchange.
 
 By default, this parameter is only available in the UnScoped Role Management role, and that role isn't assigned to any role groups. To use this parameter, you need to add the UnScoped Role Management role to a role group (for example, to the Organization Management role group). For more information, see the "Add a role to a role group" section in Manage role groups (https://technet.microsoft.com/library/jj657480.aspx).
 
-The UnScopedTopLevel switch specifies that the role provided with the Role parameter is an unscoped top level management role. You don't need to specify a value with this switch.
+The UnScopedTopLevel switch specifies that the role provided with the Role parameter is an unscoped top-level management role. You don't need to specify a value with this switch.
+
+Unscoped top-level management roles can only contain custom scripts or non-Exchange cmdlets. For more information, see Create an unscoped role(https://technet.microsoft.com/library/dd876886.aspx).
 
 ```yaml
 Type: SwitchParameter

exchange/exchange-ps/exchange/role-based-access-control/Remove-ManagementRole.md

@@ -153,7 +153,9 @@ This parameter is available on in on-premises Exchange.
 
 By default, this parameter is only available in the UnScoped Role Management role, and that role isn't assigned to any role groups. To use this parameter, you need to add the UnScoped Role Management role to a role group (for example, to the Organization Management role group). For more information, see the "Add a role to a role group" section in Manage role groups (https://technet.microsoft.com/library/jj657480.aspx).
 
-The UnScopedTopLevel switch specifies that the role you're trying to remove is an unscoped top-level role. You don't need to specify a value with this switch.
+The UnScopedTopLevel switch specifies the role that you want to remove is an unscoped top-level role. You don't need to specify a value with this switch.
+
+Unscoped top-level management roles can only contain custom scripts or non-Exchange cmdlets.
 
 You must use this switch if you want to remove an unscoped top-level role.
 

exchange/exchange-ps/exchange/role-based-access-control/Set-ManagementRoleEntry.md

@@ -177,7 +177,9 @@ This parameter is available on in on-premises Exchange.
 
 By default, this parameter is only available in the UnScoped Role Management role, and that role isn't assigned to any role groups. To use this parameter, you need to add the UnScoped Role Management role to a role group (for example, to the Organization Management role group). For more information, see the "Add a role to a role group" section in Manage role groups (https://technet.microsoft.com/library/jj657480.aspx).
 
-The UnScopedTopLevel switch specifies the role entry is on an unscoped top level role. You don't need to specify a value with this switch.
+The UnScopedTopLevel switch specifies the role entry that you want to modify is on an unscoped top-level role. You don't need to specify a value with this switch.
+
+Unscoped top-level management roles can only contain custom scripts or non-Exchange cmdlets. For more information, see Create an unscoped role(https://technet.microsoft.com/library/dd876886.aspx).
 
 You must use this switch to modify role entries on unscoped top level roles.