Hi, first, thanks a lot for this software. So from next sync i would like : - the possiblity to add a directory to an "existing sync key", for more flexibility of what i want to share. The "workaround" i use on my nas, is to create a root directory "john", and under this directory i mount localy subdirectory with "mount -o bind .....". - a KEY (or an other way), to put encrypted data on a node (like untrusted node). - the possiblity to backup from a node to an USB device. May be it is not the primary purpose of sync, but sync is used for bakup too. OR the possibility to have on a node 2 different directories with the same key, on a special KEY for USB devices etc.... - a KEY RW/O ? Read/Write Owner only. The purpose should be to avoid duplicating data that you don't want to loose if other node delete a file (workaournd if a mount -o bind,remount ro ... to avoid duplicating and to have data protection again delete) regards nunu