Hello Carla,
First, are you referring to the columns you are displaying in the View, or the records that are selected from the table (the Filter).
If you are referring to the columns, you can right mouse click on a column heading and delete the column using the pop-up context menu. If you want to change a column position, click on the column heading and drag the column to the position you want.
If you are asking about how to create a Filter, then that's a little more comples, and I'd suggest you start by reviewing the four
"Show me how..." videos on GridView.