If you want to upload large files via FTP, in order to use the files in website created by RVsitebuilder.

Please upload those files via FTP to:

/home/user/.rvsitebuilder/projects/{id}/media

/home/user/.rvsitebuilder/projects/{id}/images

/home/user/.rvsitebuilder/projects/{id}/documents

After that, go to RVsitebuilder Step 3, and click the page you want to use those uploaded files.

At page editor, click "Insert file media" or "Insert images" or "Insert document" , and select the uploaded file to be placed here.

After that, preview or publish to check it.