Separate xml sitemap per translated subfolder

[#1]

My requirement is to create a different XML sitemaps per language translation and have a central XML Index file which references those multiple XMLs.

I am setting up our website to have multiple translated versions of the website to sit as the following subfolders targeting different countries:

www.xxx.com (default en)

www.xxx.com/en-us/

www.xxx.com/en-au/

etc

The HubSpot generated XML includes all webpages, with the ability to remove single pages. However I can't work out a way to build additional XML maps separately for the above subfolders.

Can HubSpot build multiple XML files?

Alternatively, I tried to upload an XML file to File Manager, however the URL will always include  the HubSpot tag "hubf" (www.xxx.com/hubf/en-us/sitemap.xml) rather than the clean www.xxx.com/en-us/sitemap.xml.

Is there a work-around for any of this?

Thanks in advance,

Cameron

[#2]

I don't beleive this is currently possible @Cameron but you can vote for this feature and comment with your feedback here: https://community.hubspot.com/t5/HubSpot-Ideas/XML-Sitemap/idi-p/339

[#3]

I get a message about page not found when I try to open a webpage like

https://www.pcmethods.com/hubf/en-us/NEWSROOM

and the same type of message when I do sitemap.xml. 

We just have the small business account. Maybe the syntax is different? If I try to use hubfs instead of hubf, I get the "Forbidden" message.