# Modifying Treatments

1. In the Treatment Details Page, click 'Edit Treatment' ![Modify Treatment Edit Button](https://2689420226-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFMRO0BquZrbmgj6RBGJL%2Fuploads%2FNeTnbHOpsimQLszCvJMv%2F11_modifying_treatment_edit_button.png?alt=media\&token=fa15c86d-f8c2-42d1-8412-ddc178ad46a2)
2. In the Edit Treatment Page, you can edit the treatment's configuration. All fields except **Name** are allowed to be modified. Similar to creating a new Treatment template, you may choose to select an existing one and pre-fill some fields first rather than starting from scratch. ![Modify Treatment Edit Page](https://2689420226-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFMRO0BquZrbmgj6RBGJL%2Fuploads%2FjGCuqqna61qpFFrHanBn%2F11_modifying_treatment_edit_page.png?alt=media\&token=f20b7cb3-cbd7-49ea-ad84-96a3c2405726)

## Treatment History

When a treatment is edited, the existing details in the treatment prior to the edit would be saved as a historical version and can be viewed from the History tab in the Treatment Details view.

## Deleting Treatments

Treatments in XP are templates that can be deleted, deleting them prevents usage in new Experiments, but do not affect existing Experiments which were created with it.