In the SAP Analytics Cloud the graphomate extensions are installed as so-called 'Custom Widget'. Please note, you must have administrator rights for the installation.
Step
Navigate to the sidebar and select the "Analytic Applications" entry
Step
Now switch to the "Custom Widgets" tab. Via the '+'-symbol you can add the graphomate JSON
The graphomate extensions can now be used as 'custom widget' in the Application Designer.