I've started a free version on your site to test out some of the functionalities and I've had a look through the knowledge base.

here are some things I'd like to include but am stuck:
-sell digital courses/ digital course bundles
-sell digital products
-sell digital product bundles
-sell membership (recurring payment) with different membership tiers
I found an article saying that these products are possible but I'd need to use ECWID to create these products. the problem is, I've created my ECWID account but these features are only possible if I upgrade to a paid ECWID subscription.

1. please can you confirm if I can sell these digital products natively on your platform without ECWID or other paid solutions?
2. also, does unlimited disc space mean unlimited storage? or unlimited bandwidth?
3. am I able to upload large video files onto the site natively? or do I need to use youtube or vimeo?
4. under features, you've listed "Free websites published under your subdomain (e.g., custom.mybrand.com)" but under the different tiers, you've listed the number of "connected sites"...can you confirm this includes free lifetime hosting?
5. I've found add "video/audio" function, but am unable to upload m4a audio files. is it possible to upload audio files without using external platforms?
6. also, can I add PDFs/docs etc to my site or blog posts natively?

thanks