# Lock Studies

The **Lock Studies** feature is a convenient way to keep the current set of studies on a chart when you change the instrument. Choose ***View > Lock Studies*** from the top menu bar to enable this feature on the selected chart. To change the instrument on a chart, type the new symbol into the **Quick Search** box on the left side of the tool bar and press the *Enter* key.

The following two screen shots illustrate the usage of the **Lock Studies** feature:

<figure><img src="/files/G6tUY4sYqcass5ILVhCr" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/GTqocexCVIJARYJ5XP46" alt=""><figcaption></figcaption></figure>


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