In ELAN it is possible to merge a tier group (an independent tier and all of its dependent tiers) with another tier group and put the result in a new tier group. The names of the tiers in the new group are the names of the tiers in the first group with a suffix entered by the user. The mapping of tiers is based on name patterns. For instance, the tier W-RGph is mapped onto K-RGph, but not onto K-Spch.

To merge two tier groups, click in the main menu on Tier > Merge Tier Groups... and select the two independent tiers to be merged. After clicking Next, enter a suffix that is to be concatenated to the tier names of the first tier group for the naming of the new tier group and click Finish.