diff --git a/SUMMARY.md b/SUMMARY.md
index 0a270ce..20c4ea7 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -80,7 +80,7 @@
         * Operate
             * [Disable/Enable an ONU](profiles/seba/operate/onu-ops.md)
             * [Edit a Whitelist entry](profiles/seba/operate/whitelist-ops.md)
-            * [Disable/Delete an OLT](profiles/seba/operate/olt-ops.md)
+            * [Delete an OLT](profiles/seba/operate/olt-ops.md)
             * [Fix configuration errors](profiles/seba/operate/config-ops.md)
             * [Add a cross-connect in the AGG switch](profiles/seba/operate/agg-ops.md)
             * [Try a new version of *](profiles/seba/operate/k8s-helm-ops.md)
diff --git a/images/gui.png b/images/gui.png
new file mode 100644
index 0000000..4057a1c
--- /dev/null
+++ b/images/gui.png
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diff --git a/operating_cord/gui.md b/operating_cord/gui.md
index 6a5db25..cf46522 100644
--- a/operating_cord/gui.md
+++ b/operating_cord/gui.md
@@ -35,3 +35,16 @@
 ```
 
 This command opens the GUI in your default browser.
+
+## Using the GUI
+
+The GUI lets you explore the data model and gives immediate feedback on the state
+of the system through real time notifications.
+
+Some basic features:
+
+1. **Navigation**: Each item represent a service, click on it to see a list of models in that service
+2. **Search Box**: Full text search in the data model. Can't find something? Here's a good place to start from
+3. **Service Status**: Reports the status of each service and it's current version.
+
+![XOS GUI](../images/gui.png)
diff --git a/profiles/seba/operate/olt-ops.md b/profiles/seba/operate/olt-ops.md
index a4317c1..e54fd95 100644
--- a/profiles/seba/operate/olt-ops.md
+++ b/profiles/seba/operate/olt-ops.md
@@ -1 +1,32 @@
 # OLT Operations
+
+For information on how to add an OLT, please refere to the
+[POD specific configuration](../configuration.md#olt-provisioning) page.
+
+## Remove on OLT
+
+In order to remove the OLT it is mandatory that no active subscribers are using it.
+
+You have two options:
+
+- [removing the subscribers](./olt-ops.md#remove-subscriber)
+- [changing their state to pre-provisioned](./olt-ops.md#change-subscriber-status)
+
+once the subscribers are gone you can navigate to `vOLT -> OLT Devices` and remove
+the device by clicking on the red `X` icon on the left side of the table.
+
+![OLT Table view in XOS](./screenshots/olt_table_view.png "OLT Table view in XOS")
+
+### Remove subscriber
+
+To remove a subscriber just visit `RCORD -> RCORD Subscribers` and click on the
+red `X` icon on the left side of the table.
+
+![Subscribers Table view in XOS](./screenshots/subscribers_table_view.png "Subscribers Table view in XOS")
+
+### Change subscriber status
+
+To change the Subscriber status, go to `RCORD -> RCORD Subscribers` and enter the
+detail view by clicking on the magnifier icon. Then change its state to `Pre Provisioned`
+
+![Subscribers Detail view in XOS](./screenshots/subscribers_detail_view.png "Subscribers Detail view in XOS")
\ No newline at end of file
diff --git a/profiles/seba/operate/onu-ops.md b/profiles/seba/operate/onu-ops.md
index 6186438..a54b73e 100644
--- a/profiles/seba/operate/onu-ops.md
+++ b/profiles/seba/operate/onu-ops.md
@@ -1 +1,17 @@
 # ONU Operations
+
+ONUs can be managed from the corresponding view in XOS,
+it is located under `vOLT -> ONU Devices`
+
+![ONU Table view in XOS](./screenshots/onu_table_view.png "ONU Table view in XOS")
+
+From this view you can view all the ONUs known to the system, remove them or go
+to the details page (clicking on the magnifier icon)
+
+## Enable/Disable an ONU
+
+Once you are in the ONU details view, you can just change it's `Admin State`
+to enable or disable the device.
+
+![ONU Detail view in XOS](./screenshots/onu_detail_view.png "ONU Detail view in XOS")
+
diff --git a/profiles/seba/operate/screenshots/olt_table_view.png b/profiles/seba/operate/screenshots/olt_table_view.png
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diff --git a/profiles/seba/operate/screenshots/onu_detail_view.png b/profiles/seba/operate/screenshots/onu_detail_view.png
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diff --git a/profiles/seba/operate/screenshots/whitelist_table_view.png b/profiles/seba/operate/screenshots/whitelist_table_view.png
new file mode 100644
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diff --git a/profiles/seba/operate/whitelist-ops.md b/profiles/seba/operate/whitelist-ops.md
index c1335fe..54ffbc4 100644
--- a/profiles/seba/operate/whitelist-ops.md
+++ b/profiles/seba/operate/whitelist-ops.md
@@ -1 +1,11 @@
 # Whitelist Operations
+
+The whitelist entries can be removed and modified from this page.
+
+`Att Workflow Driver -> ONU Whitelist`
+
+![Whitelist Table view in XOS](./screenshots/whitelist_table_view.png "Whitelist Table view in XOS")
+
+For more information about the whitelist, please refer to the
+[Configure AT&T workflow](../workflows/att-configure.md#whitelist-population) page.
+
diff --git a/profiles/seba/workflows/att-configure.md b/profiles/seba/workflows/att-configure.md
index 056c2c9..4426858 100644
--- a/profiles/seba/workflows/att-configure.md
+++ b/profiles/seba/workflows/att-configure.md
@@ -1,10 +1,13 @@
 # Configure AT&T Workflow
 
-We assume your POD is already configured as per[this instructions](../configuration.md)
+We assume your POD is already configured as per [this instructions](../configuration.md)
 (you need to complete only the first section)
 
 ## Whitelist population
 
+> NOTE: the whitelist can be populated at any time. 
+> It doesn't need to be done upfront.
+
 To configure the ONU whitelist, you can use this TOSCA:
 
 ```yaml
@@ -37,74 +40,30 @@
 For instructions on how to push TOSCA into a CORD POD, please
 refer to this [guide](../../../xos-tosca/README.md).
 
-## Pre-provision subscribers
+### Where to find the required informations
 
-You can `pre-provision` subscribers using this TOSCA:
+#### Serial Number
 
-```yaml
-tosca_definitions_version: tosca_simple_yaml_1_0
-imports:
-  - custom_types/rcordsubscriber.yaml
+To locate the ONU serial number you can open the ONU detail view (`vOLT -> ONU Devices`).
 
-description: Pre-provsion a subscriber
+![ONU Detail view](./screenshots/onu_sn.png)
 
-topology_template:
-  node_templates:
+> NOTE: most of the time the serial number is also printed on the physical device.
 
-    # Pre-provision the subscriber the subscriber
-    my_house:
-      type: tosca.nodes.RCORDSubscriber
-      properties:
-        name: My House
-        status: pre-provisioned
-        c_tag: 111
-        onu_device: BRCM22222222
-        nas_port_id : "PON 1/1/03/1:1.1.1"
-        circuit_id: foo
-```
+#### Pon Port ID
 
-For instructions on how to push TOSCA into a CORD POD, please
-refer to this [guide](../../../xos-tosca/README.md).
+The `pon_port_id` can be found from the ONU detail view, by selecting the `PON Port`
+tab:
 
-## OLT Activation
+![ONU Detail view](./screenshots/pon_port.png)
 
-Once the system knows about whitelisted ONUs and subscribers,
-you can activate the OLT:
+#### Device ID
 
-```yaml
-tosca_definitions_version: tosca_simple_yaml_1_0
-imports:
-  - custom_types/oltdevice.yaml
-  - custom_types/voltservice.yaml
-description: Create a simulated OLT Device in VOLTHA
-topology_template:
-  node_templates:
+The `device_id` can easily be found in the OLT list view. Note the `device_id` is
+the openflow ID of the logical device exposed to ONOS, and not the serial number
+of the device.
 
-    service#volt:
-      type: tosca.nodes.VOLTService
-      properties:
-        name: volt
-        must-exist: true
-
-    olt_device:
-      type: tosca.nodes.OLTDevice
-      properties:
-        name: ONF OLT
-        device_type: openolt
-        host: 10.90.0.114
-        port: 9191
-        switch_datapath_id: of:0000000000000001
-        switch_port: "1"
-        outer_tpid: "0x8100"
-        uplink: "128"
-      requirements:
-        - volt_service:
-            node: service#volt
-            relationship: tosca.relationships.BelongsToOne
-```
-
-For instructions on how to push TOSCA into a CORD POD, please
-refer to this [guide](../../../xos-tosca/README.md).
+![OLT List view](./screenshots/olt_device_id.png)
 
 ## Device monitoring
 
diff --git a/profiles/seba/workflows/screenshots/olt_device_id.png b/profiles/seba/workflows/screenshots/olt_device_id.png
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diff --git a/profiles/seba/workflows/screenshots/pon_port.png b/profiles/seba/workflows/screenshots/pon_port.png
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