Dimension Values

Select the Dimension you want to setup linked dimensions for – in this example I am setting them up against the Project dimension.
Choose Dimension then Dimension Values from the ribbon.

Select the Dimension Value you want to setup the linked dimensions for, and then select Linked Dimensions from the Ribbon.

Select the Linked Dimension Code and Linked Dimension Value codes you want to default.

Linked Dimensions for multiple dimension values

Select the Dimensions you want to setup linked dimensions for and choose Dimension then Dimension Values.
Use Ctrl or Shft to select multiple. In this example I am setting the linked dimension up aginst the Projects PROJECT2 and PROJECT3. Choose Linked Dimension-Multiple from the ribbon.

Select the Linked Dimension Code and Linked Dimension Value codes you want to default.