The commands are:
Add them in your keymap.cson like:
'atom-workspace':# Key bindings for multi-paste'alt-v': 'multi-paste:0-to-X''ctrl-alt-v': 'multi-paste:custom-range'
There was already a Text Pastry package for Atom, but it was implemented on an old Atom version and seemed discontinued. So i started my own.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.