Go to All strategies and find three vertical dots on the right side of the strategy name. Click on the dots to view the following options:

Rename: Any strategy can be renamed at any time.
Duplicate: A new strategy with the same name and rules will be created on the server. The description of initial strategy will not copied to the duplicated strategy.
Description: Edit strategy description in appropriate language.
Delete: The strategy will be completely removed from the server along with descriptions in all languages. A running strategy can not be removed.