GeoSAFE valid combinations

[NyakudyaA]

Problem

When a user looks at InaSAFE Impact Function Centric Wizard it guides you on which combinations are valid.

For example, we can see that we have no Impact Function for Cyclone on roads. But If I choose Cyclone in GeoSAFE I can still navigate to the exposure and choose Roads. Are we not supposed to grey out exposures which are not valid for that hazard type.

When do we let a user know that the combination he has choosen will not be valid.

As an improvement would it not make sense to add that combination matrix in the GeoSAFE analysis page or it is better left in the documentation ?

cc @gubuntu @lucernae @myarjunar