adding mist reg code steps

docs/initialize_u-iso_device.md

@@ -7,15 +7,15 @@ This is the part where configuring your device gets really easy! Use a browser t
 
 ![U-ISO Device Selection GUI](/img/u-iso8_launch_gui.png)
 
-### Initialize a Conductor
+## Initialize a Conductor
 
 Use the following process to initialize your device as a Conductor.
 
 1. Select **SSR Conductor** under SSR Managed.
 
   ![SSR Conductor](/img/u-iso8a_initialize_conductor.png)
 
-2. To initialize a standalone conductor, select **STANDALONE**. To initialize the first conductor of an HA pair, select **HA NODE 0**. Select the address type (DHCP or STATIC). If Static is selected, add the static IP address. Enter the following information: 
+2. To initialize a standalone conductor, select **STANDALONE**. To initialize the first conductor of an HA pair, select **HA NODE 0**. Select the address type (DHCP or STATIC). Enter the following information: 
 
 	- Conductor name
 	- Node IP Address (Static)
@@ -24,22 +24,26 @@ Use the following process to initialize your device as a Conductor.
 	- DNS Server address(es)
 	- Artifactory username and password (if available)
 
-	Click **ASSOCIATE**
-
  ![Conductor Association](/img/u-iso9_define_conductor.png)
 
-3. The device reboots and comes online as a Conductor.
+3. Click **ASSOCIATE** 
+
+4. The device reboots and comes online as a Conductor.
+
+5. To initialize the second conductor of an HA Pair, select **HA NODE 1**, and select the address type (DHCP or STATIC). Enter the following information:
 
-4. To initialize the second conductor of an HA Pair: 
-	- select **HA NODE 0**
 	- Conductor name
-	- Artifactory username and password (if available) 
+	- Node IP Address (Static)
+	- Node Gateway (Static)
+	- Interface Name (Static)
+	- DNS Server address(es)
+	- Artifactory username and password (if available)
 
  ![HA Conductor Association](/img/u-iso9a_ha_conductor.png)
 
 5. Click **ASSOCIATE** when you have completed the required information. The device reboots and comes online as the second Conductor.
 
-### Initialize a Conductor-Managed Router
+## Initialize a Conductor-Managed Router
 
 Use the following process to initialize your device as a Conductor-managed router.
 1. Select **SSR Router Managed via Conductor** under SSR Managed.
@@ -54,9 +58,13 @@ Use the following process to initialize your device as a Conductor-managed route
 
 The Router will onboard itself to the Conductor. Router configuration is performed from the Conductor. 
 
-### Initialize a Mist-Managed Router
+## Initialize a Mist-Managed Router
 
-Use the following process to initialize your device as a Mist-managed router.
+There are two ways to initialize a Mist-managed router; selecting the Mist organization and adopting the router through the Mist UI, or entering the Mist registration code.
+
+You can use either of the following processes to initialize your device as a Mist-managed router.
+
+### Mist Organization Selection
 
 1. Select Mist Organization Selection under **Mist Cloud Managed**. 
 
@@ -92,4 +100,40 @@ Use the following process to initialize your device as a Mist-managed router.
 
 10. Click **Assign to Site**.
 
-The router is now available in your inventory, assigned to the selected site. 
+The router is now available in your inventory, assigned to the selected site. 
+
+### Mist Registration Code
+
+1. Select Mist Registration Code under **Mist Cloud Managed**.
+
+![Select Mist Registration Code](/img/u-iso18_mist_reg_code1.png)
+
+2. Enter your Mist Registration Code for your organization. If you do not have your registration code, refer to the steps below.
+
+![Enter Mist Registration Code](/img/u-iso19_mist_reg_code1.png)
+
+3. Click **ADOPT**. Your router is adopted into your Mist Organization, and is now available in your inventory, assigned to the selected site.
+
+
+### Retrieve the Mist Registration Code
+
+Use the following procedure to retrieve the Mist registration code from your Mist Organization.
+
+1. Using a separate browser, log in to your Mist Organization.
+
+2. From the Mist menu on the left, select **Organization > Inventory**.
+
+	![Inventory Menu](/img/wan_inventory.png)
+
+3. In the Inventory panel, click on the **WAN Edge** selection on the top of the screen.
+
+  ![Inventory panel](/img/wan_inventory_panel.png)
+
+4. Click on the **Adopt WAN Edges** button in the top right corner. The WAN Edge Adoption dialog appears, displaying the registration code.
+
+  ![WAN Edge Adoption](/img/wan_registration_code.png)
+
+5. Click on **Copy to Clipboard**.
+
+6. Return to the **Initialization page** and paste the registration code into the Registration Code field.
+