Creating a 2 column layout can make a form look better for the user. To achieve this we can work with horizontal and vertical groups.
In the form where you want to create this, you need to select the field where you want to get the two columns, and add a Horizontal Group:
Once the Horizontal Group is in, select it and make the group a bit larger by dragging it a bit down and add a Vertical Group so it looks like this:
Now make sure you select the Horizontal group again as seen in the picture above and add another Vertical Group. It should now look like this:
Once this is done you can drag fields in to both groups like this:
If you want to see this in a video: