Would it be possible to, optionally, have the preview and editor view open at the same time? Side by Side?

This would make reviewing my posts before publishing much much easier! Currently, this a tedious task of proofreading in the preview, toggle to "Write" to make an adjustment, toggle back to "Preview". Often I lose my place when toggling back and forth. I really like the "Zen" type mode when you are writing the bulk of your post. But, I think to proofread you don't want to have to keep switching back and forth.

This is the example of what this could look like.

Thank you!