Leave a shared web page in Express

The LEAVE function only works occasionally. I have 80-100 students sharing their web portfolio with me every semester. I MUST be able to LEAVE these web pages after the class is over. I have hundreds of shared files and it has become unmanageable. Are you working on adding a LEAVE function where I can select several at a time?? I will not continue using this platform unless this is fixed soon. Frustrated teacher...