You can group database tables together into groups. Group of tables acts as a folder, it does not logically link database tables together in any way. Having put a database table into a group, you continue referring to this table by its name, and do not need to add the group name prefix.
Typically you may want to create two group of tables: Input for tables storing the input data, and Output containing tables designed for the output data.
To create a new group of tables
To move database table(s) into a group