You may delete an arm of an epoch. However, all details (collection events and specimen requirements) associated with the arm are also deleted . To delete an arm, search for the study, using Search[ |#id.elwy3aftu9nv]a[ |#id.elwy3aftu9nv]study that contains arm that should deleted.
From tree structure, select the epoch that has the arm that should be deleted. System displays Edit epoch screen where list of existing arms for that epoch are displayed.
Select the checkbox beside the arm that should be deleted and select Delete button. Now, select Submit.
System deletes the selected arm and the deleted arm is not displayed in tree structure. Select Save study