If you have a table at the top of the first page in Word then decide that you want to add text above it, you can move the table down by clicking inside a cell on the top row and then use recap's tip of CTRL+ENTER to force a new page. If you then press backspace the page break is deleted and you are left with a blank line above the table.
To get superscript while typing press CTRL and SHIFT and + altogether. Press the same keys to return to normal typing.
To get subscript press CTRL and = together. Press the same keys again to return to normal.