The service does not provide a feature to attach a file to record comments, "Label" fields, or "Rich text" fields.

However, if an image or a file is already attached to records or threads in the same kintone environment, you can drag and drop (or copy and paste) the attached image or file onto the input fields.

• Example of how to carry out the operation for a record comment

• Example of how to carry out the operation for a "Label" field

• Example of how to carry out the operation for a "Rich text" field