Expand selection to left cell on ⇧+← when selecting columns <= anchor

[zbeyens]

2022-05-28.at.22.20.10.mp4

Given

• table 2x2
• selected cells: 12

        <editor>
          <htable>
            <htr>
              <htd>11</htd>
              <htd>
                12
                <cursor />
              </htd>
            </htr>
            <htr>
              <htd>21</htd>
              <htd>22</htd>
            </htr>
          </htable>
        </editor>

When

• press ⇧+←

Then

• selected cells: 11-12

        <editor>
          <htable>
            <htr>
              <htd>
                <anchor />
                11
              </htd>
              <htd>
                <focus />
                12
              </htd>
            </htr>
            <htr>
              <htd>21</htd>
              <htd>22</htd>
            </htr>
          </htable>
        </editor>