If, during analysis, you discover that you did log your observations into too many DataSets -like using separate DataSets per pass for the same session- you can always put your data back together again.
Merge Manually
To manually move Events into an other DataSet:
▪Drag & drop your Events to the required location.
▪Read Drag & Drop Selection for further information.
Merge Events from different Sets
If all Events from one DataGroup need to be merged into a single DataSet:
▪Select Transform - Restructure - Data 
- Move all Events to a single Dataset (per DataGroup).
(Used to be Additional - Extensions - Functions 
> Data Restructuring - Combine all DataSets into a new File)
INTERACT creates a new data-file in which all Events are merged into a single DataSet per DataGroup, leaving the original data structure untouched.
Merge Sets from Different Groups
If you want to move all DataSets that are spread over different DataGroups into a single DataGroup (for instance if after a file merge or one of the other structuring command each DataGroup holds only a single DataSet and the Group itself is no longer of importance):
▪Select Transform - Restructure - Data - Move all DataSets into a single DataGroup
to start the merge.
INTERACT creates a new data-file in which all DataSets are moved into a single DataGroup, leaving the original Events per DataSet structure untouched.