Hi All, I am looking to exercise the following "combination trade" in TDA ThinkOrSwim platform: Sell to Close 100 Call options QCOM, Jan 18 2019, Strike $50, Buy to Open 200 Call options QCOM, Jan 17 2020, Strike $70. What is the name of such a trade (if it is available) and how do I place it? I have used Diagonal trades to roll options strikes upwards and farther down in time but the Diagonal works for the same number of contracts only. Back/Ratio trades allow forward roll in strike, number of contracts but the same Expiry! Thank you.