Does trader still need to enter Schedule C after done the 4797 Form input? If yes, how to do it? Double taxed here?

In the Business Income screen use the General Income category to input the trading Gains/Losses?

 

After I enter the number, it counts the number again. The Gains/Losses number has been counted in the 4797 Form when I input it by using the "Sale of Business Property" entry as guided by this official link: 

 

https://ttlc.intuit.com/turbotax-support/en-us/help-article/income/report-trader-activity-without-se...

 

I did the MTM election last year (2023 tax year).  This is the first year of the Securities Trading business.  How to handle the Schedule C for the trader business?