Mouse-down here to bring up the Current frame tool selection window.

Mouse-down here to bring up a window of animation tools which can be dragged onto the exposure sheet.

Mouse-down here to bring up the mode selection window.

Mouse-down in the frontmost square to bring up the foreground color/pattern selection palette.  Mouse-down in the rear square to bring up the background color/pattern selection palette.

Mouse-down here to bring up the tool selection window.

Mouse-down here to bring up the pen selection window.