NOTE: This function is only partially supported at this time. The number function returns the number of buttons or fields on the current tile or on its background, the number of backgrounds or tiles in the currents stack, the number of chunks of a specified kind in a designated container or text string, the number of tiles that are associated with a specified background, the number of marked tiles in the current stack, the the number of menus in the menu bar, the number of menu items in a specified menu, or the number of windows currently available.

The optionKey function returns the constant up if the Option key is not pressed, down if it is pressed.

NOTE: This function has not been implemented yet, but will be soon. The selectedChunk function returns a chunk expression describing the location of the selected text or the insertion point in a tile or background field. For selected text, it is in the form of the first character selected to last character selected of the field containing the selected text; for example, char 7 to 15 of tile field 3. If no text is selected, but the insertion point is in a field, selectedChunk returns the number of the character on either side of the insertion point in reverse order with the highest number first. For example, if the insertion point is located between characters 9 and 10 in tile field 2, selectedChunk returns char 10 to 9 of tile field 2. If nothing is selected and the insertion point is not in a field, it returns empty.

The selectedField function returns the descriptor of a field containing the selected text or the insertion point.

The abs function returns the absolute value (makes the sign positive) of the number passed to it.

The exp function returns the mathematical exponential of its argument (the constant e, which equals 2.7182818, raised to the power specified by the argument).

The mouseH function returns an integer representing the number of horizontal pixels from the left side of the tile to the current location of the mouse pointer.

The mouseLoc function returns the point on the screen where the pointer is currently located. This point is returned as two integers separated by a comma, representing horizontal and verical pixel offsets from the upper-left corner of the tile.

NOTE: This function has not been implemented yet, but will be soon. The tool function returns the name of the current chosen tool in the Stack Editor.