Global variables

That is a system structure which contains variables (for scenarios they are constants) available from the whole app:

Here you can create objects with two fields: ID and value.

{{}} will return ''

ID is a key for that Global variable. You can invoke this variable from the scenario, API-endpoint settings or filter, typing {{GlobalVar.ID}}

Global variables are not included into a snapshot, export and import them manually, in case of a need.