You have hidden the timeline columns. There are some icons in the bottom left corner of the timeline. The first one looks like a stack of squares. That one is the layer Switches Panel (column). That column contains the values for the properties in the Layer Name column. The next is the Transfer Controls panel. If either is selected, then the property values show up in the columns, but if both are selected, the property values appear only in the Layer Switches column. I prefer to work with both selected. Shift + F4 will bring up the Parent Link column and two other switch icons in the bottom left corner of the timeline will bring up other useful columns.