Simple question, is there a way to customize the Site Tree's width when editing a page? Further, is there a way to make the width draggable? This would be very useful when editing blog posts - the default width is too skinny.
I was also going to write a post on this subject. The element <div id="cms-content-tools-CMSMain"> really needs to be wider by default. If this area is a ModelAdmin search area that has an import field then the Browse button is always cut off. If it is a site tree listing then the status of the page is cut off or not visible if the page name is too long. Being able to resize this is extremely important.
There is a months-old open ticket on this (not started by me): https://github.com/silverstripe/silverstripe-framework/issues/1565