Right-clicking a cell with a link only offered "Link…", whose dialog was
titled Insert Hyperlink, so changing a link wasn't obvious. As in Excel,
the cell menu of a linked cell now offers Edit Hyperlink… (the same
dialog, filled with the link and titled Edit Hyperlink), Open Hyperlink
(as clicking the link: a reference selects its cell, a web or e-mail
address asks first) and Remove Hyperlink (edit.clearHyperlinks). A cell
without a link keeps "Link…".
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>