Add Transaction Tables to a Table Group 
 To add  transaction tables to a table group, do the following: 
  -  Activate the Transactions workspace, and  select a model. 
- Select a transaction table group to which you want to add transaction tables. 
-  Click Add transaction tables, (or select File  Add Transaction Tables from the menu). Add Transaction Tables from the menu).
- Select the transaction tables to add to the table group, and  click Add.
 
 Note:
  To preview data in a transaction table, select a table and click Preview.
-  Click Next. The Period page opens 
- Assign a period to each transaction table.
 
 Note: Each transaction table in a model can have one and only one period. And, each period in a model can have only one transaction table. (If you encounter the error Several transaction tables are assigned to the same period, it is because a  table exists in the table group that is assigned to that period.)
-  Click Finish. 
-  Transaction tables that have been added to a table group are displayed under the table group name in the Transactions workspace.