1. Inside your n8n workflow, select and open the 'Edit Fields' node.
2. After that, click the 'Mode' menu and choose JSON from the list.
3. Subsequently, enter your JSON code into the provided input field.
4. If you wish to add and configure other relevant input fields, simply switch on the toggle button beside 'Include Other Input Fields'.
5. Subsequently, click 'Add Option' if you want to personalize your node further.
6. Once done, click 'Execute Step' to run your recent input.
7. Finally, your JSON code will be imported into your Edit Fields node and activated in your n8n workflow.