In the center of the main dialog is a multiline editor, based on the input widget which enables multiline input of queris. This editor, beside allowing the standard navigation keys, accepts the following ones, to further accelerate entry and editing of queries. 1 Moves the cursor to this point. Drag selects characters. Double click selects words.
Triple click selects all text.
Backspace Deletes one character to the left, or deletes the selected region. These deletions are all concatenated into the X selection. Start a compose-character sequence. The next one or two keys typed define the character to insert. Often this will undo a lot more than you expected.