1. Menu Transform / Orient / Line-Line ...None (seen that is not exactly that you want :)

With Only 4 clicks you can align anything to anything (if no success repeat on time in case of very rotated object) :)
(more easy than the true Orient who can make some headaches! :)

2. you have this commands (but not sure of what do you want exactly)
http://moi3d.com/forum/index.php?webtag=MOI&msg=7912.4



3. There is not yet true Components Instances
but you have things for replace somethings by other things
https://moi3d.com/forum/index.php?webtag=MOI&msg=10261.1