> For the complete documentation index, see [llms.txt](https://docs.inogic.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.inogic.com/textsms4dynamics/configuration/access-chat-ui-on-crm-records/access-messaging-ui-when-customer-of-messaging-session-is-set/approach-1-adding-a-tab.md).
# Approach 1 (Adding a Tab)
* Navigate to **Settings** -> **Customizations.**
* Click on **'Customize the System'.**
* Navigate to **Entities** Navigate -> **Contact** -> **Forms**.
* Click on **Contact** Entity with Form Type Main.
* Select (or Add) the **Tab**
* Then Select, **Sub-Grid**.
* A new window will pop up. **Add the Name, Label, Records** as **Only Related Records, Entity** as **Message Sessions (Customer), Default View** as **All Message Sessions - Internal Purpose.**
* Navigate to **Controls** and click **Add Controls.**
* From the dropdown list search for **TextSMSChatSystem** and add it as a control.
* Once done, **TextSMSChatSystem** will be shown under the **Controls Tab** and you can enable it for multiple devices to access it accordingly.
* After clicking **Ok**, then click on **Save** & **Publish** for the grid to be visible.
* Once done, you can view the **Message UI** on the Contact Record and communicate with the customers directly, as shown in the screenshot below.
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