I would be immensely grateful if we could deliberate on the feasibility of attaining a lasting solution instead of resorting to temporary workarounds.
Full-screen editor, a feature that holds the potential to significantly augment our workflow and overall user experience.

I'm glad that worked for everyone. I did as Georg and yourself recommended and updated the CustomHTML. That did indeed make a lot of people happy here at my work. 8)

Combining @Don's and @Georg's responses, this fixed the whole problem for me (with minor adjustments to the CSS). Thanks to you two for spotting this out!

Adding the following code to $confluence_base/admin/editcustomhtml.action (e.g. "start of text") comes pretty close to a "full screen experience".

<style>
#confluence-roadmap-dialog {
 width: 95%;
 height: 95%;
 top: 25px;
 justify-content: space-between;
}

#confluence-roadmap-dialog--panel{
max-height: 100% !important;
}
</style> 

I'm curious on what's holding back Atlassian from such a tiny change with such a huge improvement in usability...

Thanks Don, that works great! Put this with <style> tags in the Custom HTML and your users will love you  

Hi Folks,

I'm not sure this was mentioned before, but I did find a work around this issue using a Chrome Extension called Stylebot.

It essentially allows you to modify the styles of a page automatically all the time.

So on my local computer I set it up so that when I hit our corporate confluence page for the roadmap it resizes it to a larger size.

The code looks like this

#confluence-roadmap-dialog {
 height: 75%;
 top: 110px;
 width: 95%;
}

Since I've done that it's been working fine, in fact so fine that I forgot this problem still exists.

So until they fix it, for anyone watching this isn't a bad workaround.

Bye,

Don

Really needed! +1 (plus the several thousand business users I represent)

BTW, this has been fixed in Cloud for several months.  

+1 Currently the macro is unusable - what a shame - only one simple CSS attribute for size / resize and everything is fine.

+1 Would also love to see this good macro being able used with an usable size. With the current size of the editing window, it is hard to work with and so it is often not used at our company, just because editing in such a small window is real pain.

We have tried Jira Portfolio and other solutions for showing a high level roadmap, but we love how the Confluence macro is simple and looks nice.  Please improve it!