would it be possible to implement some sort of deep-linking?
Eg.: I click on a link - with 3 url-parameters - in my mail, which leads to 3 selected data-entries in 3 datagrids which are located on the same navigation page.

kind regards

It probably is possible however not via page parameters as they cannot be optional at the moment. You can probably use query string parameters though e.g. /page?param=value. Those can be then retrieved as shown in this SO answer.