THe other tools let you generate and modify functions in many ways. Hence, these all have parameters boxes associated with them. These parameter boxes will open up when selected with Button-2 or with Shift-Button-1. Relevant parameters can be entered with checkbuttons and sliders.
 

Toggles the toolbar into an independent window. Closing the window  replaces it in interface window.

Copies the selected graph into the clipboard and replace the graph to its default value.

Copies the selected graph into the clipboard.

Pastes the clipboard contents to the selected graph.

Resets the selected graph to its init value.

Opens the fileselector to save the selected graph file.

Opens the fileselector to import an .act file to the selected graph.

Moves the selected graph up by 1 pixel.

Moves the selected graph down by 1 pixel..

Maps a sine function onto selected graph. Button-2 opens parameter box.

Maps a square/Saw/ramp/pulse function onto selected graph. Button-2 opens parameter box.

Maps a drunk function onto selected graph. Button-2 opens parameter box.

Scatters and resamples selected graph. Button-2 opens parameter box.

Maps a random function onto selected graph. Button-2 opens parameter box.

Compresses selected graph on the x axis. Button-2 opens parameter box.

Compresses/expands (normalize) selected graph on the y axis. Button-2 opens parameter box.