ResInsight lets the user create additional well path laterals by clicking in the 3D view. Completions can be added to laterals, and the complete specification of the well can be exported using the Completion Export
The parent well and the measured depth of the tie in location can be adjusted from the property editor.
When a lateral is created, the postfix Y1 is added to the original well path. The first lateral is given the postfix Y2. See the image above for an example of naming.