Tableau is the corporate tool for data visualisation and dashboards. A general training has been developed by the gFSC and is available here.
A specific training on the Interactive Dashboard Template is available here and a step by step guide here.
For specific questions reach out to your gFSC focal point.
Please note that Tableau is the corporate tool and therefore it is not suggested to develop dashboards using Power Bi. Nevertheless, previous training material is available here.