You can perform an interactive merge for the results of model transformations.
Prerequisite
You have changed the source model and enable the Merge with existing transformation and Perform interactive merge options for the model transformation.
Procedure
The differences are highlighted in the BPMN diagram. You can accept or discard them.
Once you have decided for all changes, click Apply decisions.
You have aligned a target model with the corresponding source model.
Tip
You can also make a decision for both complex and simple models by right-clicking in the corresponding row. The decision is applied immediately.