The individual columns in the Data View are displayed in whole, never partial. I recommend resizing the Element column (or any other column) to get all columns to display in the Data View so you don't need to use the scroll bar. The way you resize columns in Data View is to put the mouse cursor in the line between the column HEADERS and resize them at the HEADERs (not the data cells).
The Data View is a dockable, floatable window. When it is docked, you can auto-hide it by unpinning it and it only shows up whenever you cursor around its tab, and it expands out (temporarily) to cover the Ladder View. OR you can Pin it so that it is always there, and the Ladder View just resizes itself to the area left. OR you can float it by grabbing the title bar and dragging it on a 2nd monitor. You can dock it on either side, or the top or bottom. Since Data View is a long table, it is recommended you dock it on left or right, but you can dock it anywhere.