Existing functionality considers twit

• Active cell is moved into Twit

  <aside> ☝ steps through cells inside as if they are in the sheet itself.

  </aside>

  • Should take cell's size

• Edit cell within a twit

  • should take cell's size
    • there is CellEditor always available

• Rectangular selection

  <aside> ☝ select cells in and out of twit as if they are in the sheet itself

  </aside>

  <aside> ☝ when selection started outside, intersects twit - sizes in that twit are temporarily reset to defaults

  </aside>

• Column selection - same as rectangular selection

New operations

• Select twit

  <aside> ☝ Simply draw rectangular selection exactly matching twit

  </aside>

  <aside> ☝ ? Click on the twit border shown on twit hover

  </aside>

  ? Context menu ⇒ Select twit of this cell

• Resize column

  • Resizing should be limited within twit

    <aside> ☝ stop resizer at twit border

    </aside>

  • Snapping to 1/4 width (25px) increment

  • Double click on resizer - resize to fit content OR resize to default size (100 / 32px)

• Move (d&d) twit

  <aside> ☝ as twit is defined inside cells - this is no different from moving selection (copy/paste)

  </aside>

Special cases

• Nested twit
• Nested twit over top row of parent twit
• twits sharing parent's column
• twit doesn't fit screen

States

• twit selected
  • show "resize" cursor over border between header highlights