fix

components/Timetable.tsx

@@ -126,7 +126,18 @@ const Timetable = ({
       for (const td_index in tr.children) {
         const td: HTMLTableCellElement = tr.children[td_index];
         if (td.tagName !== "TD") continue;
+
         if (td.getAttribute("bgcolor")?.toUpperCase() !== "#39CEFF") {
+          // const position (assigned by supervisor)
+          if (td?.textContent?.trim() === user) {
+            const constSelected = document.createElement("input");
+            constSelected.setAttribute("type", "checkbox");
+            constSelected.setAttribute("checked", "1");
+            constSelected.setAttribute("disabled", "1");
+            td.innerHTML = "";
+            td.appendChild(constSelected);
+          }
+
           row.push(null);
           continue;
         }