diff --git a/assets/js/smithwaterman.js b/assets/js/smithwaterman.js
index 20652d3..ca38baf 100644
--- a/assets/js/smithwaterman.js
+++ b/assets/js/smithwaterman.js
@@ -536,5 +536,38 @@ function buildAlignmentCorrect(seq1, seq2, alignmentPath) {
     return [alignSeq1, alignSeq2];
 }
 
+document.addEventListener('DOMContentLoaded', function () {
+      const table = document.getElementById('tableD');
+
+      table.addEventListener('keydown', function (event) {
+        const currentCell = event.target.parentElement;
+        const currentRow = currentCell.parentElement;
+        const currentRowIndex = currentRow.rowIndex;
+        const currentCellIndex = currentCell.cellIndex;
+
+        let nextCell;
+
+        switch (event.key) {
+          case 'ArrowUp':
+            nextCell = table.rows[currentRowIndex - 1]?.cells[currentCellIndex];
+            break;
+          case 'ArrowDown':
+            nextCell = table.rows[currentRowIndex + 1]?.cells[currentCellIndex];
+            break;
+          case 'ArrowLeft':
+            nextCell = currentCellIndex > 0 ? currentRow.cells[currentCellIndex - 1] : null;
+            break;
+          case 'ArrowRight':
+            nextCell = currentRow.cells[currentCellIndex + 1];
+            break;
+          default:
+            break;
+        }
 
+        if (nextCell && nextCell.querySelector('input')) {
+          nextCell.querySelector('input').focus();
+          event.preventDefault();
+        }
+      });
+    });