Investors & landlords

It seems that I need to split this sale and enter it in two parts so that I can deal with the RSU and ESPP parts independently.  But I can't add another sale to the imported 1099-B.   If I remove the imported form, I can add another sale for the RSUs, and apportion the transaction details between the two sales.  Then update the 1099 worksheet in form view to add the institution info back in.   Am I on the right track here?