Your employer will have to file the I-129 petition with uscis and if you elect COS then once approved the I-797 will show the new status and your new I-94 will be located at the bottom of you I-797. If you have any other questions, feel free to ask them in our next Lawfully office hours session! - Attorney MaryJoy Chuba (All information shared here is for general educational purposes only. It does not constitute legal advice or create an attorney - client relationship. Your situation may require fact-specific guidance. For personalized legal advice, please consult an immigration attorney directly.)