diff --git a/cwUi.cpp b/cwUi.cpp
index a347391..db256f7 100644
--- a/cwUi.cpp
+++ b/cwUi.cpp
@@ -212,6 +212,15 @@ namespace cw
       return kInvalidId;
     }
 
+    unsigned _findElementUuId( ui_t* p, unsigned appId )
+    {
+      for(unsigned i=0; i<p->eleN; ++i)
+        if( p->eleA[i]->appId == appId )
+          return p->eleA[i]->uuId;
+  
+      return kInvalidId;
+    }
+    
     const char* _findEleEleName( ui_t* p, unsigned uuId )
     {
       for(unsigned i=0; i<p->eleN; ++i)
@@ -229,7 +238,15 @@ namespace cw
       if( p->sendCbFunc != nullptr )
       {
         unsigned msgByteN = msg==nullptr ? 0 : strlen(msg);
-        return p->sendCbFunc( p->sendCbArg, wsSessId, msg, msgByteN );
+
+        if( wsSessId != kInvalidId )
+          rc = p->sendCbFunc( p->sendCbArg, wsSessId, msg, msgByteN );
+        else
+          {
+            for(unsigned i=0; i<p->sessN; ++i)
+              rc = p->sendCbFunc( p->sendCbArg, p->sessA[i], msg, msgByteN );
+            
+          }
       }
       
       return rc;
@@ -723,7 +740,8 @@ namespace cw
         if( snprintf(mbuf,mbufN,mFmt,uuId,vbuf) >= mbufN-1 )
           return cwLogError(kBufTooSmallRC,"The msg buffer is too small.");
 
-        p->sendCbFunc(p->sendCbArg,wsSessId,mbuf,strlen(mbuf));
+        //p->sendCbFunc(p->sendCbArg,wsSessId,mbuf,strlen(mbuf));
+        _websockSend(p,wsSessId,mbuf);
       }
 
       return rc;
@@ -977,6 +995,14 @@ unsigned cw::ui::findElementUuId( handle_t h, const char* eleName )
   return _findElementUuId(p,eleName);
 }
 
+unsigned cw::ui::findElementUuId( handle_t h, unsigned appId )
+{
+  ui_t* p = _handleToPtr(h);
+  
+  return _findElementUuId(p,appId);  
+}
+
+
 unsigned  cw::ui::findElementAppId(  handle_t h, unsigned uuId )
 {
   ui_t* p = _handleToPtr(h);
diff --git a/cwUi.h b/cwUi.h
index 7dbfb81..1dba1b2 100644
--- a/cwUi.h
+++ b/cwUi.h
@@ -45,8 +45,9 @@ namespace cw
     const char* findElementName(   handle_t h, unsigned uuId );
     unsigned    findElementAppId(  handle_t h, unsigned uuId );
     
-    // Return the uuid of the first matching 'eleName'.
+    // Return the uuid of the first matching 'eleName' or 'appId'.
     unsigned    findElementUuId( handle_t h, const char* eleName );
+    unsigned    findElementUuId( handle_t h, unsigned appId );
 
     rc_t createFromObject( handle_t h, const object_t* o, unsigned wsSessId, unsigned parentUuId=kInvalidId, const char* eleName=nullptr);
     rc_t createFromFile(   handle_t h, const char* fn,    unsigned wsSessId, unsigned parentUuId=kInvalidId);
@@ -77,6 +78,7 @@ namespace cw
     rc_t registerAppIdMap(  handle_t h, const appIdMap_t* map, unsigned mapN );
 
     // Send a value from the application to the UI via a JSON messages.
+    // Set wsSessId to kInvalidId to send to all sessions.
     rc_t sendValueBool(   handle_t h, unsigned wsSessId, unsigned uuId, bool value );
     rc_t sendValueInt(    handle_t h, unsigned wsSessId, unsigned uuId, int value );
     rc_t sendValueUInt(   handle_t h, unsigned wsSessId, unsigned uuId, unsigned value );