Apologies if this is a low-level question -- I am fairly new to using Jira and am still learning all of the admin functionalities.
I recently moved to a new team using a new project in Jira, and they have been using the same screens and screen schemes for all issue types. I have learned how to create new screens based on these issue types, but I am worried that previously used fields will no longer be visible once I introduce a new screen scheme. For example, I no longer want "Acceptance Criteria" or "Design Assets" to be fields for Bugs, but these have been used in the past.
Is there a way to keep all fields visible that had previously been filled in, but only allowing users moving forward to stick to the newly established screen scheme?