You can add data definition language (DDL) statements that perform preparation tasks when a process instance starts and cleanup statements when the process instance is removed.
For example, at process instance start time you might want to create a new view of a table, or refill a table.
Conversely, DDL statements performing cleanup tasks can be run when the process instance is removed, for example, statements that drop the tables created when the instance starts.
To add process instance settings: