All row heights in table view are currently fixed to a single line, although you can change column widths. Fields that contain a lot of information can be easily viewed and edited by expanding the item to the detail panel or popup.
To quickly switch between expanded items, use the up and down arrow keys. (Note: this will only work when you're not editing a field).
If you need to write longer texts in a multiline text field, you can open the text editor by clicking on the arrows, that appear when hovering over it.
A text box will appear in which you can write your text.