Export To PDF Button not visible in Ribbon Workbench in crm 365 online

Hi All,

WE enabled Export to PDF Button functionality in crm 365 online but this button need to be visible on condition basis.

But I am not able to find thhis button in Ribbon Workbench to customize enable/display rule. From where i can find this button in Ribbon workbench any idea ?

Thanks,

Jharana