"I have an existing project in PCS7 Version 9.0 SP3.The program name is “S7 Program(1)”. I opened the project and modified the Hardware to add new modules, then modified some CFC Charts to add some objects. The program compiled and is operating on the PLC “CPU 410-5H”.

Now, I need to open the project for the existing HMI in WINCC and add a couple of new indications, but I'm unable to get the newly created tags to appear. What steps can I follow to achieve this?"