The startable.load.dialogs
property names additional
load sub-dialogues which are made available from a
TableLoadChooser
dialogue.
Its value is a colon-separated list of class names, where each
element of the list must be the name of a class on the classpath
which implements the
TableLoadDialog
interface
and has a no-arg constructor.
When a new TableLoadChooser
is constructed,
an instance of each such named class is created and added to the
handler list.