Dynamic windows size TinyMCE

[musicscore]

I build a website with two different templates.
one template has a content field which is 980px width.
The second one has a content field of 580px width.

Is it possible that when an editor selects the template with the 980px content area the editor field is also 980px and when he selects the template with a content area of 580px width the editor field in TinyMCE is automaticly adjust to 580px.

This, because the editor will see more wysiwyg.

Tia

Musicscore

[Dr.CSS]

Not possible, sorry...