Is is possible to automatically log in a certain user from a fixed ip address?
something similar.
easy version: add in hfs the same folder twice, published with different names, A and B. You should protect A with password/account, and just hide folder B. Give the address of B only to trusted people, so they don't have to use a password.
complex version: B should contain a "diff template" that will block access from unwanted IP addresses, by using scripting commands.
Is it possible to set max number of connections limit, which is Not applied to browsing (no limit on file listing)?
menu > limits > max simultaneous downloads from single address