diff --git a/classes/table/timeslots/timeslots_table.php b/classes/table/timeslots/timeslots_table.php
index fb5df18..a3563c9 100644
--- a/classes/table/timeslots/timeslots_table.php
+++ b/classes/table/timeslots/timeslots_table.php
@@ -38,6 +38,9 @@
  */
 class timeslots_table extends \table_sql implements \renderable {
 
+    /** @var int Display mode for table. */
+    public $displaymode = 0;
+
     /**
      * Constructs the table and defines how the data from the SQL query is displayed
      * @param string $uniqueid ID that uniquely identifies this element on the HTML page
diff --git a/classes/table/viewpoints/viewpoints_table.php b/classes/table/viewpoints/viewpoints_table.php
index 1b78e26..ccb1a76 100644
--- a/classes/table/viewpoints/viewpoints_table.php
+++ b/classes/table/viewpoints/viewpoints_table.php
@@ -38,6 +38,13 @@
  */
 class viewpoints_table extends \table_sql implements \renderable {
 
+
+    /** @var context\system System context. */
+    protected $context = 0;
+
+    /** @var int Display mode for table. */
+    protected $displaymode = 0;
+
     /**
      * Constructs the table and defines how the data from the SQL query is displayed
      * @param string $uniqueid ID that uniquely identifies this element on the HTML page
diff --git a/classes/table/viewsessions/viewsessions_table.php b/classes/table/viewsessions/viewsessions_table.php
index 753985d..06e8700 100644
--- a/classes/table/viewsessions/viewsessions_table.php
+++ b/classes/table/viewsessions/viewsessions_table.php
@@ -38,6 +38,9 @@
  */
 class viewsessions_table extends \table_sql implements \renderable {
 
+    /** @var context\system System context. */
+    protected $context = 0;
+
     /**
      * Constructs the table and defines how the data from the SQL query is displayed
      * @param string $uniqueid ID that uniquely identifies this element on the HTML page