Can't set bookmark as default

[Hawaii]

Hello,

sorry but I'm quite new to Qlik workd.

This is the scenario: 

I duplicate an app created by our developer.

I can create a bookmark, but if click on it with right button, I can't set as default.

If I publish my duplicated app, I can't see my bookmark.

Is it possible to create a "base bookmark" as set as default, so the app will open always with this bookmark.

I have a Qlik Enterprise Professional license (I don't know if it matters).

Thank you.