diff --git a/source/libublsettings-char.c b/source/libublsettings-char.c
index 0521521..b8a6b62 100644
--- a/source/libublsettings-char.c
+++ b/source/libublsettings-char.c
@@ -48,6 +48,24 @@ char *yon_char_append_element(char *source,char *target, char *divider){
     return yon_char_new(source);
 }
 
+char *yon_char_append_elements(char *source,char *target, char *divider){
+    if (!yon_char_is_empty(target)&&!yon_char_is_empty(divider)){
+        if (yon_char_is_empty(source)) return yon_char_new(target);
+        int size=0;
+        int target_size=0;
+        config_str parsed = yon_char_parse(source,&size,divider);
+        config_str target_parsed = yon_char_parse(target,&target_size,divider);
+        for (int i=0;i<target_size;i++){
+            if (yon_char_parsed_check_exist(parsed,size,target_parsed[i])==-1){
+                yon_char_parsed_add_or_create_if_exists(parsed,&size,target);
+            }
+        }
+        yon_char_parsed_free(target_parsed,target_size);
+        return yon_char_parsed_to_string(parsed,size,divider);
+    }
+    return yon_char_new(source);
+}
+
 char *yon_char_force_append_element(char *source,char *target, char *divider){
     if (yon_char_is_empty(target)){
         target = "";
diff --git a/source/libublsettings-config.c b/source/libublsettings-config.c
index f9a71d5..9a13425 100644
--- a/source/libublsettings-config.c
+++ b/source/libublsettings-config.c
@@ -665,6 +665,25 @@ int yon_config_append_element(char *key, char *append, char *divider){
     return 0;
 }
 
+int yon_config_append_elements(char *key, char *append, char *divider){
+    check_config{
+        int found = 0;
+        yon_config_parameter *dict = (yon_config_parameter*)yon_dictionary_get((dictionary**)&__yon__config__strings,key);
+        if (dict){
+            if (!yon_char_check_elements((char*)dict->data,append,divider)){
+                char *temp = yon_char_append_elements((char*)dict->data,append,divider);
+                if (!yon_char_is_empty((char*)dict->data)) free(dict->data);
+                dict->data = temp;
+                dict->flag1 = 1;
+                yon_config_remove_ignore(key);
+                return 1;
+            }
+        }
+        
+    }
+    return 0;
+}
+
 int yon_config_force_append_element(char *key, char *append, char *divider){
     check_config{
         int found = 0;
diff --git a/source/libublsettings.h b/source/libublsettings.h
index 7dce9c4..ca1dbd1 100644
--- a/source/libublsettings.h
+++ b/source/libublsettings.h
@@ -646,6 +646,13 @@ char *yon_char_append_c(const char *source, char append);
  */
 char *yon_char_append_element(char *source,char *target, char *divider);
 
+/// @brief Append string of elements with another string of elements
+/// @param source sSource string of elements.
+/// @param target Appended string of elements.
+/// @param separator String, separating elements within parameter's value
+/// @return A newly allocated string of elements
+char *yon_char_append_elements(char *source,char *target, char *separator);
+
 char *yon_char_force_append_element(char *source,char *target, char *divider);
 /**
  * @brief Remove substring from string.
@@ -1375,6 +1382,13 @@ int yon_config_remove_elements(char *key, char *delete_target, char *separator);
 /// @return 1 if element was successfully added, 0 otherwise
 int yon_config_append_element(char *key, char *append, char *separator);
 
+/// @brief Append registered parameter value string of elements with another string of elements
+/// @param key parameter key
+/// @param append string to append
+/// @param separator string, separating elements within parameter's value 
+/// @return 1 if element was successfully added, 0 otherwise
+int yon_config_append_elements(char *key, char *append, char *divider);
+
 /// @brief Append parameter value string event if appended string already exists in parameter value or empty
 /// @param key parameter key
 /// @param append string to append