Yes, you can edit Custom Fields but cannot change the scope of Custom Field. If a Custom Field is created for User Story, it will remain associated to User Stories only. If you want to add same Custom Fields for another Item type, create a new Custom Field.

In order to edit Custom Field, follow the navigation below.

• Click on Main Navigation Menu, Settings dropdown > Configurations > Manage Custom Fields
• Select Item Type, and Locate Custom Field > select > Edit