Yes you enter all your income for both of you on one Joint return.
To add a W2 just type w2 (small W) in the search box at the top of your return and click on Jump To the W2
OR To Add a W2 enter it under
Federal on left
Wages & Income at the top
Then Wages and Salaries- Click the Start or Revisit button
Then if you are married you should have 2 buttons...Add w-2 for (taxpayer name) and Add w-2 for (spouse name). Click on the correct button to add a W-2.
To enter a SSA-1099 Try going to the search box upper right and type in SSA-1099 or Social Security Benefits. That will give you a Jump To link to take you directly to it.
OR
Enter a SSA-1099, SSA-1099-SM or RRB-1099 under
Federal
Wages and Income tab
Then scroll down to Retirement Plans and Social Security
Social Security (SSA-1099. RRB-1099) - click the Start or Update button