Like any other drawing shape, Columns have handles that you can click and drag to resize the shape.
To use the shape handles to resize a Column:
1. Click the Column shape and move your mouse across one of the shape handles until the cursor changes to a double arrow, as seen below.
2. Click and drag your mouse to stretch or shrink the shape using the shape handles.
As you are resizing, notice the Column size changes in the left-hand section of the Status Bar. Use this as a guide to help you resize the Column as needed.