You need to manually add another Schedule C and E under the other person's name. I don't know how Schedule E works. I think that's by the property not the owner.
For Schedule C you would split up all the income and expenses and enter half on each Schedule C or whatever percentage you want. Be sure to assign each C to the right person. It will automatically create a Schedule SE for each person.
See this to add another Schedule C
https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/enter-schedule-...
If you've already entered self-employment work and need to enter more, select Add another line of work.
