# Session variables panel

The session variables panel allows work in two modes:

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### Read-only mode (default)

Available features include:

* the ability to sort the session variables table by any available column (**Mid**, **Default value**, **Service ID**, **Output parameter**, **Exposed**, **Gtm**, **GTM tag**, **Statistics**),
* the ability to search the table across all columns except **Exposed** and **Gtm** — available after clicking the magnifying glass in the upper-right corner of the drawer.

![Figure 1. Example of searching the session variables table for the phrase "applicants"](/files/9c561457e57d76be4933b278404a0cc864437cee)
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### Edit mode (available after pressing "Edit process")

All features from read-only mode are available, plus:

* the ability to edit existing session variables, excluding variables created by default (predefined). In fields that can be edited, a placeholder is displayed (e.g. **Default value**).
* the ability to delete session variables, excluding variables created by default. A variable is deleted using the trash icon that appears when hovering over a specific variable. For default variables, the trash icon is inactive.
* the ability to add a new session variable using the button **Add session variable** located at the bottom of the panel. Clicking it adds a new row at the top of the table and places the cursor in an empty field **Mid**. The new variable must have a value **Mid**; the remaining properties are optional.
* When editing or adding a new variable, remember the dependencies between properties:

{% hint style="info" %}

* Property **Gtm** can be selected only if the property **Exposed**.
* Property **GTM tag** can be filled in only if the property **Gtm**.
  {% endhint %}

More information on creating and editing variables in [Managing session variables](/documentation/documentation-en/budowanie-aplikacji/interfejs-uzytkownika/formularze/zmienne-sesyjne/zarzadzanie-zmiennymi-sesyjnymi.md).

After clicking the option in the side panel **Session Variables**, the side panel with a table showing a preview of the session variables used in the application will slide out.

![Figure 2. Session variables definition panel in edit mode](/files/5c2a6331f43c2e87ea959461be70333352b7f772)
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