I would try doing a green situation that is affected by the Reserve/Debt.
But I’m not sure about a variable that reflects the “Reserve/Dept”
EDIT: did now look into the situations.txt and take a look on “Dept Crises”, this variables are used there:
“global_interest_rates,0.2*(x^4)”,“effectivedebt,0+(x^4)”
Perhaps if using “effectivedept,0-(x^4)” as an input for the situation, it will only appear when there’s enough reserves.