Suggest: initial velocity - spin, is not keyable and difficult to change for a long amount of objects

What steps will reproduce the problem?
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What is the expected output? What do you see instead?

What version of the product are you using? On what operating system?
2.8

Please provide any additional information below.
not keyable attribute doesen't appear in attribute editor and spreed sheet 
editor, that's annoiing to modify this value to large ammount of object,
If anyone need, I've made this simple MEL to "fix" (sorry i'm newbie in vfx I 
know)
http://www.creativecrash.com/maya/downloads/scripts-plugins/dynamics/c/dynamica-
bullet-tool-by-cily--2

Original issue reported on code.google.com by cil...@gmail.com on 11 Oct 2012 at 8:40

mettli / dynamica

Suggest: initial velocity - spin, is not keyable and difficult to change for a long amount of objects #48