vim navigation missing in preview tool window

Currently, the preview mode is rather limited (no search possibility, no zoom possibility)

The preview panel should support Vim mode to enable easier navigation, searching, and copying of the contents.

It would be especially useful when the preview is in dock mode, and while navigating through the item list, you just want to view the item in read-only mode, without entering edit mode and having to switch the cognitive context from list view to editor and vice versa.

The alternative would be to enable Edit view to be open in split mode, instead of always opening it in full-screen mode.

For example, I want to find a shortcut for Amethyst, but I cannot as the preview panel does not have search support, so I need to lose the context by entering edit mode F2, instead of just pressing Shift + Tab and searching the string: