Scope 1+2 physical/economic intensity targets - which tool should I apply?

If I understood it right, FIs are allowed to set physical/economic intensity targets for Scope 1+2. The guidance refers to the Excel-Tool for companies “SBTi-target-setting-tool” for developing such targets. However, in this tool, the only way to develop physical/economic intensity targets is for Scope 3 emissions, not for Scope 1 + 2. How do I have to apply the tool for FI’s Scope 1+2 targets, if I aim to develop economic/physical intensity targets for those emissions?