dynamic form for new issue based on issue type

[jimconn]

On the suggestion of @Trudy Claspill , I will ask this question as a separate question from https://community.atlassian.com/t5/Jira-questions/Custom-fields-and-customization-of-ticket-workflow-based-on/qaq-p/2356453#U2360755

Given a custom drop-down in the create issue pane, based on the selection of the item in the drop-down, I would like to (dynamically?) present fields related to that selected item, which when filled in will present the customer-supplied responses in the API response of the create-ticket item to be parsed and acted upon and be present in the new ticket (TBD).

How does one do this? I found https://community.atlassian.com/t5/Adaptavist-questions/I-want-to-direct-a-customers-response-to-question-a-or-b-based/qaq-p/1325471 which might bark up the right road, but I'm not sure and I'm not sure if what I want is even possible. This link above shows what I think is relevant information, but what it doesn't cover is how to "link" responses from custom fields to view fields. That totally eludes me in this system. https://community.atlassian.com/t5/Jira-Software-questions/Change-the-workflow-status-based-on-custom-field-value/qaq-p/1935972 may also have clues but this one is mildly confusing to me.