I have to agree with Reveur:
no idea why such a functionality is not yet included in vanilla,
and why the mod was downloaded by so few people only.
the only problem i have with this mod: for people with a QWER/ASDF keyboard who use WASD for walking (thus many users, english, german, etc; probably not french), the default keybindings include SHIFT-D which prohibits walking south while SHIFT-dragging something (eg to copy properties with shift-leftclick to a column of assemblers or chests). but since hotkeys can be configured easily, I changed it to alt-A/S/D to have the functions on three neighboring keys (after changing alt to something else to have that modifier available for use on many many mods), and the devs will try to solve such problems in 0.17 anyway.