I'm assuming you are referring to having a 2 column table layout in v.5?
If so, the form is set to responsive layout by default, this setting uses divs.
In order to change to table layout do the following:
- Go to General settings
- Look for the header called "Layout (Panels / Tabs, Header / Footer / System Messages, Sort Order) "
- Right beneath that header are 4 tabs.
The first tab labelled "responsive" will be active, and right beneath it is the setting "Form Layout Method".
- Choose "Tables" instead of "Responsive", that's it.
Note: I had a hard time finding this as well, this was because the tabs did not fit on a single row in my case, and thus obscured the layout setting somewhat.