Starting with the release of Strategy ONE (March 2024), dossiers are also known as dashboards.
In Strategy 2021 Update 4, Strategy Library introduced dossier authoring functionalities all within one interface. You can now create new dossiers or edit existing ones.
There a multiple entry points for the dossier creation and editing feature:


This feature is currently available for desktop browsers only.
This feature is not yet enabled for mobile browsers.
If you are working on a desktop machine with a touch screen, for example, Windows Surface, these dossier authoring buttons are not displayed.
If you view the image below, you can see that the dossier creation button is missing in the top toolbar of Library Home.

This feature was built for desktop mode browsers only. For desktop machines with touch screens, for example, Windows Surface, the clients are considered as tablets and therefore, edit buttons are not shown.
For touch screen machines, please disable touch screen. For example, with the Windows Surface, please refer to this Microsoft documentation.
After disabling touch screen settings, please make sure to restart the web browser to pick up the latest configuration.
This issue has been addressed in Strategy 2021 Update 5. Consider updating to take advantage of the fix.