It would be useful to define conditional fields that depend on values from a preceding step
Currently, conditions and the conditional fields must reside within the same wizard step.

conditional-fields.yaml is an example of a simple template: It contains a first step with a flag, and a second step with two fields, one of which depends on the choice made in the first step.

This is the issue for the upstream project. 

https://github.com/backstage/backstage/issues/31895