# Notebook Operations
This section aims at describing the following operations for a Notebook:
## Major Operations
* **Datasets:** Add datasets and get a list of all the added datasets.
* **Secrets**: You can generate Environment Variables to save your confidential information from getting exposed.
* **Variable Explorer:** Get detailed information of Variables declared inside a Notebook.
* **Find and Replace**: You can search for a specific text inside your code and replace it if needed.
{% hint style="info" %}
*Please Note:* *The below-given Notebook operations should be performed in this sequence only:* **Save Model -> Load Model -> Predict -> Save Artifacts**
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## **Other Operations**
The Notebook operations icons (as provided below) help to apply various actions to the code/ code cell when clicked. They are provided on the top right side of the Notebook page.
The below given table lists the Menu Bar operations and mentions the related actions to them:
| Icon | Icon Name | Action |
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------- | ----------------------------------------------------------------------------- |
|  | Refresh | Refreshes the Notebook. |
|  | Restart kernel | Restarts the kernel by killing the current session and creates a new session. |
|  | Add Pre cell | Adds a code cell before the first cell. |
|  | Save | Saves the Notebook updates. |
|  | Delete cell | Removes the selected cell. |
|  | Undo Delete cell | Reverts the Deleted cell. |
|  | Cut cell | Cuts the code from a specific cell. |
|  | Copy cell | Copies the code from a specific cell. |
|  | Paste cell | Pastes the cut or copied code to the selected cell. |
|  | Run Current cell | Runs code given for a specific cell. |
|  | Run all cells | Runs the codes for all the cells. |
|  | Shutdown | Stops the Kernel/Disconnects the instance and allocated resources. |
|  | Collapse | Collapses the right-side menu panel. |
{% hint style="info" %}
*Please Note: Refer the **Data Science Lab Quick Start Flow** page to get an overview of the **Data Science Lab** module in nutshell.* [***Click here***](https://docs.bdb.ai/data-science-lab-1/data-science-lab-quick-start-flow) *to get redirected to the quick start flow page.*
{% endhint %}
