buttonLocation
From SAP Enable Now Wiki
Scope
SAP Companion parameter, specified either in the URL or in the SAP Companion parameters in the linked application. This parameter is specific to S/4HANA only.
Purpose
This parameter (in theory) specifies the position of the Help button within then user interface. Currently there is only one option - head - so this is probably for future expansion (into applications that already have other buttons in the header - for example, to move the SAP Enable Now button into a sub-menu or something).
Usage
Specified as:
buttonLocation=head