Multiple pipelines are available on Nutshell Pro and above.
Pipelines may be archived in Nutshell. To archive a pipeline, be sure that there are no open or pending leads in that pipeline by using your pipeline and status filters on the leads list to delete, win, lose, or cancel any leads. You may also edit the open or pending leads to place them in other pipelines.
The next step is to visit your pipeline setup page and archive the pipeline: