Navigation:  Reference > Properties > User Defined Properties

You can define your own properties on the Global Property Window, or define it dynamically via the Set Global Property action.

 

 

User defined properties are very helpful to store some simple data (a string or number).  If you need to store data structure with 1 dimension (array) or 2 dimensions (table),  you may consider storing them with an (invisible) Table element.  You can use Set Table Cell Value, Append New Row to Table, Insert New Row to Table and Delete Row from Table actions to manage the data, and use the Table Row Count and Table Cell Values properties to retrieve your data.