I've been looking around for an answer/possible update on this issue, as it would seem I am far from the only one that would like to be able to do this in JIRA.
Currently I have a custom field that does show up under the "Details" section in the Issue View Screen (Using the Default Text Renderer). What I would like to do is to move the custom field to be under the "Descriptions" section, in order to make the text more visible and clean up the screen from clutter.
Is this possible, and how would one go about doing it? If not, I have to say that I find it weird that this kind of simple customization isn't possible in what otherwise is a robust, and highly customizable tool.
Cheers for any answers!