When viewing a grid view, you can freeze - or lock - a field in order to always keep it in view when you're scrolling through a table horizontally.
How to freeze fields
To freeze fields, start by hovering over the dividing line next to any field. You'll see a blue bar appear with the indicator to "drag to adjust the number of frozen columns".
Click and hold your mouse and drag this past the field(s) you want to freeze, and then unclick. Now, all the fields to the left of the frozen field divider will remain fixed when you scroll horizontally.
You'll see a vertical line that extends past your records that indicates which fields are frozen.
How to unfreeze fields
If you'd like unfreeze any fields, you'll repeat this action in reverse, dragging from right to left instead.