# Signal List

Once you have loaded a dataset to your project, you have to select the signals you want to see visualised.

On the left side of the screen you have a list of all the signals.

<figure><img src="/files/2UDQXWxsSah4sAGHQYsn" alt=""><figcaption></figcaption></figure>

By default, the signal list will show a dataset's signals. To see a dataset's functions, toggle the switch at the top of the signal list.

<figure><img src="/files/pbnLaSp0CPR6NksBrRE6" alt="" width="252"><figcaption></figcaption></figure>

## Signal metadata

To see the metadata of a signal, hover over the signal name in the signal list.

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

For more information on how to setup signal metadata, see: [Data Library](/docs/marple-insight/user-manuals/data-library.md#signal-metadata).

## Add signals

To add signals to your plot, double click on the signal, or drag and drop the signal to the plot.

To find a signal, you can use the search box and do a fuzzy search in all available signals. If you make a typo, or do "t" instead of "T", the result will still appear.

<figure><img src="/files/kbsM90HIyaa3XGbdpKiM" alt="" width="450"><figcaption><p>Add a signal to your plot by double clicking or dragging and dropping the signal</p></figcaption></figure>

## Signal List Settings

To change the appearance and organisation of your signal list, click on the settings wheel at the top right of the signal list.

<figure><img src="/files/IJ1rg7tzuziAZG4ve3Yw" alt="" width="375"><figcaption><p>Signal settings</p></figcaption></figure>

This allows you to:

1. Enable or disable the alphabetical sorting of the signal list;
2. Show or hide the units of the signals;
3. Show the signals in a grouped, and select what sign should be used for the signal groups.

<figure><img src="/files/vBxkBtabGTmrnup44Hjl" alt="" width="563"><figcaption><p>Change the signal group settings</p></figcaption></figure>


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