"Back"-Button History in Z*Window

Hello Everyone!

I have a question about the "Back-Button" who is on top of the right side.

We build our own Z* Searchpage. In the searchresult of our Z* View we've got a link to an "Activity".

After we jump into the "Activity" we would like to return with the "Back"-Button to our Z* Searchpage. But the standard History does not jump back to our Searchpage.

Is there a possibilty to solve this problem. How could we make the "Back"-Button jump into our Z* Searchpage. Can we somehow change the standard history.

I would be glad if someone could help us!

Many thank,

Isabel