Working with MM at Schwab

Im coming over from Fidelity so Im used to my parked cash getting swept into the money market account and had a question with Schwabs format.

With fidelity i could trade based off that money in the swept amount and not have to wait a day for the money to clear. From my understanding with schwab i cant do that because I have to manually buy/sell my money market fund so I have to wait for the day to clear. Is that correct? Just want to understand because like to use my funds as dry powder for crazy days like we just had.