Hi, after more than 5 days continously work after work here is brand new files upload module.

1. Files upload module
   1. Option to configure who can upload files, operators or visitors
   2. What types can upload
   3. File size limit
   4. File types configuration
   5. Option to set who sees all uploaded files
2. User related files upload functionality
   1. User can drop directly file in chat window or press attatchment icon
   2. Chrome users can just "Print Screen" and ctrl+v in chat window. Screenshot will be automaticaly sended to operator and vica versa.
3. Advanced file storage by <year>/<month>/<day>/<chat_id>/file pattern

Upgrade instruction.

• You may have to give your operators two new permissions from roles functions if you are upgrading.
• create "var/storage" folder in your LHC installation and grant write permission to php script. Futher updates as always.
• execute doc/update_db/update_43.sql and follow standard upgrade instructions

Let me know if something won't work. It's really hard for me alone to test everything, but I do my best as always :). More updates are comming :)