Shortcut to go to next table cell in table in Pages
⌥ alt/option↩︎ enter/return will always move down a cell.



The down ↓ arrow key will move you down a cell when


not editing the contents of the cell
(i.e. the cell is selected but the insertion point is not within the cell), or
the insertion point is on the last line of the text content of the cell


If your insertion point is on another line of the cell, either


keep pressing ↓ until you get to the bottom line (then another press will jump cell), or
press ⌘cmd↩︎enter/return first to acknowledge cell contents and jump out of the cell, then ↓.