Preview: make configurable where it positions editor's current cursor line

[jeffjensen]

Hi, I did not find configuration for adjusting where Preview positions the current editing line; does one exist?

The Preview positions the current editing line at the top and I am continually scrolling the Preview window to see some lines above it.

My preference is to center the current editing line in Preview. Perhaps a configurable option for "Top, Middle, Bottom allows for user choice?

Another idea is a "number of lines" display offset - e.g. "offset of 5" means show 5 lines above current one?