The Menu

Menu - Tools

Calculator

Opens the Calculator.

Date Picker

Opens the Date Picker dialog.

Time Picker

Opens the Time Picker dialog.

Calculate Time Difference

Opens the Calculate Time Difference dialog.

Random Numbers

Opens the Random Numbers dialog.

Color Picker

Opens the Color Picker dialog.

Phonetic Alphabets

Opens the Phonetic Alphabets dialog.

Load Exchange Rates

Opens the interactive Exchange Rates dialog.
See also How to update exchange rates on the command line? and How to create an exchange rate filter?