We are currently preparing to merge two projects, with the goal of enabling HMI-A to access and operate the interface of HMI-B. At this stage, I’m using a solution where HMI-A opens a Web Client session to HMI-B via a Web Control component.

However, this approach has two main limitations:

• It does not allow flexible navigation to specific screens on HMI-B. After launching the Web Client session, the operator is always directed to the main screen of HMI-B and must manually navigate to the desired screen. 
• Operators are required to log in twice — once on HMI-A and again when accessing HMI-B through the Web Client.

I’d like to ask if there is a better solution that could address these two issues — ideally allowing direct access to specific screens on HMI-B and enabling a single sign-on experience or credential pass-through between the two HMIs.

Any suggestions or best practices you could share would be greatly appreciated.