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# 5.4 Mách nhỏ (Thủ thuật)

<details>

<summary><strong>1 - Hoàn tác/quay lại</strong></summary>

Khi muốn quay lại hành động trước đó, chỉ đơn thuẩn ấn Ctrl + Z

</details>

<details>

<summary><strong>2 - Chọn nhiều dữ liệu/nhiều dòng</strong></summary>

Ấn chọn dòng/dữ liệu đầu tiên, sau đó, chọn ấn Shift + dòng/dữ liệu cuối cùng để chọn khoảng dữ liệu/dòng mà muốn chọn

</details>


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