Editing buttons

The corpus is displayed one token at a time, where a token is a matrix sentence with an ID number. Most of the editing functions require the user first to select a node or nodes in the parse tree. The action indicated by the button name is taken with respect to the selected node(s). When two nodes are selected, the order of selection is normally significant. Often, after clicking on a button, the user must enter information into the input box located at the left edge of the second row of the toolbar.
Previous TokenMoves to the previous token.
Next TokenMoves to the next token.
Go ToMoves to the token whose number is subsequently entered into the input box.
ResetResets the current token to its state when the current file was last saved. Disabled.
UndoUndoes the last action. May be repeated.
RedoRedoes the last undone action. May be repeated.
Change LabelChanges the label of the selected node. Will ask for user input.
Add NodeAdds a node with label to be supplied as the mother of the selected node.
DeleteDeletes the selected node. Part-of-speech tags and text elements may not be deleted.
Move ToAfter two nodes are selected, moves the first node to be a daughter of the second. Fails if this movement would cause a change in word order.
CoIndexco-indexes the second of two selected nodes with the first.
Insert Zero LeftInserts a zero empty category as the left sister of the second of two selected nodes.
Insert Zero RightInserts a zero empty category as the right sister of the second of two selected nodes.
Insert Trace LeftInserts a trace empty category as the left sister of the second of two selected nodes.
Insert Trace RightInserts a trace empty category as the right sister of the second of two selected nodes.
Merge With Previous TokenMerges the current token as the daughter of the root node of the previous token.
Merge With Next TokenMerges the current token as the daughter of the root node of the next token.
Split TokenSplits the current token into two tokens at the selected node. Splits cannot be undone.