It is possible to rename the aliases within the header at all time. By double-clicking the alias, the text editor (8) opens, where you can change the expressions.

 

To get a better overview, the header for the PARCEL data can be formatted, by defining a frame color (9). To do this, activate by mouse click the HeaderGST band and select a color in the frame settings. The HeaderGST (10) component is colored with the selected color.

In the preview (11) you can get an overview of the components that have been set up so far.