I am working on a style file and would like to
get quasi-interactive feedback when I make
changes in my style file.

What I have in mind is using two texmacs windows,
one showing a document rendered according to my
style file, the other showing the style's source.

Now, when I edit the style file, how can I get
texmacs to update the on-screen rendering in the
document window? I tried Document->Update->All,
but that does not work. The only thing I found
to work is to close texmacs, start a new instance
and load the document again.

Is there a way to do what I want? How do others
go about developing a style?

Ralf