Hello wix people i’m creating educational site and i need an upload system where i can let students upload files in a private way so we know the level of our students you know from homeworks and online exams etc… so is that possible and how to do that…
last thing is i need to know how to connect a submit button with a upload button please help me the upload thing is stopping me from starting my site
This is possible with Corvid - but it will take a bit of work. This sounds kinda like a LMS you are trying to build. Can you add your needs to this thread here: https://community.wix.com/partners/forum/partner-discussion/what-are-your-needs-of-a-lms-learning-mgt-system Thanks! 
i will add my needs to this thread now but do i need now to hire a wix member to do the corvid thing for me ?
@qusaialahmad1997 You can hire a partner through the Wix Marketplace or by posting under Resources & Opportunities .