Why can I only enter one 1099r this year? I select edit on the 1099-r, then select Linda and it brings up the information I just entered for mine.

Have you tried:

You can also find the 1099-R section using Search. 

Open your return, enter 1099-r in the search bar, and select the Jump to 1099-r link.

That should take you to a 1099-R Summary page (after you have already entered your first 1099-R).  Select the Add another 1099-R button.

If you set up your return as a joint return correctly, then when you go to the screen to enter a 1099R you should see spaces with each spouse's name.   Do not click "edit" on your own name.  Look for the spot that has your spouse's name on that screen.