Choose Tools tab→Variables group→Variables
In the Variable Table, click the Filter button 
.
In the Filter dialog box, set the following options to specify which variables or dimensions are displayed in the Variable Table. For example, to see all the dimensions and variables in the Variable Table, set the following options:
In the Type box, select Dimensions and User Variables.
In the Named By box, select Both.
In the Graphics In box, select File.
Note:
When you click OK, the settings are saved, so the next time you use the Filter command, the last settings are used.
Tip:
A convenient method of limiting the number of variables and dimensions displayed is to name the ones you use frequently. Then, on the Filter dialog box, in the Named By box, click Users to display the named variables and dimensions.
You can edit the value of a dimension by editing its value in the Variable Table.