Each field, or column, in an attribute table has properties that describe its contents and how the data in it should be displayed. Set the field visibility on columns in a table to save space by hiding the ones you don't readily need to work with. Once you hide a column in a table, it is no longer visible in other dialog boxes, such as the Pop-up window when you identify a feature, and the Attributes pane for the selected features you want to edit.
You can turn off field visibility by right-clicking the column header and clicking Hide Field . If you open the field's view for the layer, you can confirm that the field visibility is unchecked.
To show all fields again without having to open the field's view, click the menu button at the top of the Attribute table and click Show All Fields. Any hidden fields will turn back on and become available in the attribute table and in other dialog boxes.