Use this window see all topics in one list, see what features are in use (hyperlinks, documents, etc.), to edit topic names, hyperlinks1) or hints2).
The first two columns are to identify the topic:
Topic type -
dependency network group,
calculated data link,
simple data link
The next set of columns are buttons to perform actions on the topic:
Delete the topic - enabled only if it is has no dependents (there are no topics that connect to it from above)
Open the topic's properties editor
Jump to the topic's hyperlink - enabled only if a hyperlink has been specified
Open the document list
for the topic - icon is blank if there are no documents associated with the topic
Accept changes - icon is visible if edits have been made. If the topic's name is changed it will be verified that the new name does not exist before the change is made.
Cancel current edits and restore to the originals.
The last three columns are in-place editors for:
The topic name and hint in-place editors both incorporate automatic spell checking if ISpell is installed.