public function groupAppend( $groupName, $groupName2OrArray , $replace = true ){
		$this->load($groupName);
		$data = [];
		if( is_array( $groupName2OrArray ) ){
			$data = $groupName2OrArray;
		}
		else{
			$this->load( $groupName2OrArray );
			$data = $this->langs[ $groupName2OrArray];
		}
		if( !empty( $data)){
			foreach ($data as $k => $v ){
				if( isset( $this->langs[$groupName][$k])){
					if( $replace == true ){
						$this->langs[ $groupName ][$k] = $v;
					}
				}
				else{
					$this->langs[ $groupName ][$k] = $v;
				}
				
			}
		}
		
	}