Yes, the scroll wheel forward expands to the full size, and backwards
reduces it to one line; this is as designed, and only on the wheel for lack
of a better UI idea.
I can't say that it has any amount of documentation or discoverability :-(

I see what you mean about the "jitter" on expand contract.  I can't think
of a way to handle, but if I ever open the source again I'll think about
some sort of hysteresis.

Paul

On Tue Oct 28 2014 at 3:55:39 PM erik quanstrom <quanstro@quanstro.net>
wrote:

> On Mon Oct 27 23:49:06 EDT 2014, paul.a.lalonde@gmail.com wrote:
>
> > What do you mean by resizing flicker?  I've never seen it with the
> > multi-line tags.  And we do resize the tag by hand - the scroll wheel
> opens
> > and shuts it, in addition to adding/removing the trailing newline.
>
> i didn't realize there was the scroll wheel trick.  it doesn't work when
> the tag is empty, or allow one to expand the tag window larger than the
> current tag.
>
> what i mean by "flicker" is that if i modify a file which has
> a tag line that is close to wrapping, then modifying the file
> will often make the tag line too long, and wrapping.  Undo
> has the opposite effect.
>
> - erik
>
>