diff --git a/swad_changelog.h b/swad_changelog.h
index adec0560..99d83643 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -629,10 +629,11 @@ TODO: Emilce Barrera Mesa: Podr
 TODO: Emilce Barrera Mesa: Mis estudiantes presentan muchas dificultades a la hora de poner la foto porque la plataforma es muy exigente respecto al fondo de la imagen.
 
 */
-#define Log_PLATFORM_VERSION	"SWAD 22.120.10 (2023-09-09)"
+#define Log_PLATFORM_VERSION	"SWAD 22.120.11 (2023-09-09)"
 #define CSS_FILE		"swad22.120.4.css"
 #define JS_FILE			"swad22.49.js"
 /*
+	Version 22.120.11:Sep 09, 2023  Code refactoring related to hidden-visible in exam sessions. (337594 lines)
 	Version 22.120.10:Sep 09, 2023  Code refactoring related to hidden-visible in exams. (337604 lines)
 	Version 22.120.9: Sep 09, 2023  Code refactoring related to hidden-visible in attendance. (337607 lines)
 	Version 22.120.8: Sep 09, 2023  Code refactoring related to hidden-visible in assignments. (337610 lines)
diff --git a/swad_exam_database.c b/swad_exam_database.c
index ad4aa988..12b43515 100644
--- a/swad_exam_database.c
+++ b/swad_exam_database.c
@@ -1530,7 +1530,8 @@ void Exa_DB_ToggleVisResultsSesUsr (const struct ExaSes_Session *Session)
 /******************************** Hide a session *****************************/
 /*****************************************************************************/
 
-void Exa_DB_HideUnhideSession (const struct ExaSes_Session *Session,bool Hide)
+void Exa_DB_HideUnhideSession (const struct ExaSes_Session *Session,
+			       HidVis_HiddenOrVisible_t HiddenOrVisible)
   {
    DB_QueryUPDATE ("can not hide exam sessions",
 		   "UPDATE exa_sessions,"
@@ -1540,8 +1541,8 @@ void Exa_DB_HideUnhideSession (const struct ExaSes_Session *Session,bool Hide)
 		     " AND exa_sessions.ExaCod=%ld"	// Extra check
 		     " AND exa_sessions.ExaCod=exa_exams.ExaCod"
 		     " AND exa_exams.CrsCod=%ld",	// Extra check
-		   Hide ? 'Y' :
-			  'N',
+		   HiddenOrVisible == HidVis_HIDDEN ? 'Y' :
+						      'N',
 		   Session->SesCod,
 		   Session->ExaCod,
 		   Gbl.Hierarchy.Crs.CrsCod);
diff --git a/swad_exam_database.h b/swad_exam_database.h
index 31008d33..fb4ab522 100644
--- a/swad_exam_database.h
+++ b/swad_exam_database.h
@@ -118,7 +118,8 @@ unsigned Exa_DB_GetSessions (MYSQL_RES **mysql_res,long ExaCod);
 unsigned Exa_DB_GetSessionDataByCod (MYSQL_RES **mysql_res,long SesCod);
 void Exa_DB_GetSessionTitle (long SesCod,char Title[ExaSes_MAX_BYTES_TITLE + 1]);
 void Exa_DB_ToggleVisResultsSesUsr (const struct ExaSes_Session *Session);
-void Exa_DB_HideUnhideSession (const struct ExaSes_Session *Session,bool Hide);
+void Exa_DB_HideUnhideSession (const struct ExaSes_Session *Session,
+			       HidVis_HiddenOrVisible_t HiddenOrVisible);
 void Exa_DB_RemoveSessionFromAllTables (long SesCod);
 void Exa_DB_RemoveAllSessionsFromExam (long ExaCod);
 void Exa_DB_RemoveAllSessionsFromCrs (long CrsCod);
diff --git a/swad_exam_session.c b/swad_exam_session.c
index 5d91ce1a..f39afc6c 100644
--- a/swad_exam_session.c
+++ b/swad_exam_session.c
@@ -96,6 +96,8 @@ static void ExaSes_ListOneOrMoreSessionsResultTch (struct Exa_Exams *Exams,
 static void ExaSes_GetSessionDataFromRow (MYSQL_RES *mysql_res,
 				          struct ExaSes_Session *Session);
 
+static void ExaSes_HideUnhideSession (HidVis_HiddenOrVisible_t HiddenOrVisible);
+
 static void ExaSes_PutFormSession (struct ExaSes_Session *Session);
 static void ExaSes_ParsFormSession (void *Session);
 
@@ -859,10 +861,20 @@ void ExaSes_RemoveSession (void)
   }
 
 /*****************************************************************************/
-/******************************** Hide a session *****************************/
+/*************************** Hide/unhide a session ***************************/
 /*****************************************************************************/
 
 void ExaSes_HideSession (void)
+  {
+   ExaSes_HideUnhideSession (HidVis_HIDDEN);
+  }
+
+void ExaSes_UnhideSession (void)
+  {
+   ExaSes_HideUnhideSession (HidVis_VISIBLE);
+  }
+
+static void ExaSes_HideUnhideSession (HidVis_HiddenOrVisible_t HiddenOrVisible)
   {
    struct Exa_Exams Exams;
    struct ExaSes_Session Session;
@@ -880,36 +892,7 @@ void ExaSes_HideSession (void)
       Err_NoPermissionExit ();
 
    /***** Hide session *****/
-   Exa_DB_HideUnhideSession (&Session,true);
-
-   /***** Show current exam *****/
-   Exa_ShowOnlyOneExam (&Exams,&Session,
-	                false);	// Do not put form for session
-  }
-
-/*****************************************************************************/
-/***************************** Unhide an session *****************************/
-/*****************************************************************************/
-
-void ExaSes_UnhideSession (void)
-  {
-   struct Exa_Exams Exams;
-   struct ExaSes_Session Session;
-
-   /***** Reset exams context *****/
-   Exa_ResetExams (&Exams);
-   Exa_ResetExam (&Exams.Exam);
-   ExaSes_ResetSession (&Session);
-
-   /***** Get and check parameters *****/
-   ExaSes_GetAndCheckPars (&Exams,&Session);
-
-   /***** Check if I can remove this exam session *****/
-   if (!ExaSes_CheckIfICanEditThisSession (Session.UsrCod))
-      Err_NoPermissionExit ();
-
-   /***** Unhide session *****/
-   Exa_DB_HideUnhideSession (&Session,false);
+   Exa_DB_HideUnhideSession (&Session,HiddenOrVisible);
 
    /***** Show current exam *****/
    Exa_ShowOnlyOneExam (&Exams,&Session,