Make a selection and from the edit menu choose Multiple Inserts. Insert an integer from 1 to 65535 and a byte from 0 to 255 and press the check sign. Just before the current position of the cursor, an amount of bytes will be inserted and the file will be refreshed. Note that selection is no longer needed.
ESC closes the plugin and inserting 0 will have no effect. Also, the command button with the little man running on the plugin's form will force this help file to show up. Finally there is an about box with info about the version of the application and its license. To view the about box select from Help|About Plugins|Multiple Inserts.