[Proposal] Listing multiple exposure category for one dataset

[matamadio]

What is the context or reason for the change?

There are "asset exposure" datasets that are made of several components. We want to list them all together without splitting the dataset.

Why is this not covered by the existing model?

Currently only one exposure category can be selected for one dataset.

What is your proposed change?

Being able to list multiple values for the field, similar to what happens on the "countries" field.
And each one is related to one specific metric.

Can you provide an example?

Afghanistan-asset-exposure includes buildings, infrastructures, agriculture, population.
We want to be able to group them into the same "Exposed Asset" dataset/page, e.g. buildings;infrastructures;agriculture;population