How are conditional fields added/removed in the middle of a set of questions?

[pbauer]

When I have a question like feature_x as step 2 in the a list of questions how can I make that conditional?

For example in https://github.com/plone/cookieplone-templates/tree/unify-sub-project-settings the questions volto_version and frontend_addon_name always asked.

I tried changing the format of a question to computed in the if-then-block to hide it conditionally but it still showed up.