Well, having a build in option to create such a transaction would be better for users with less knowledge about that stuff. You know how Armory does it right?
Easier than this? Tools > Create transaction > From CSV
text
1rdymachKZpA9pTYHYHMYZjfjnoBW6B3k,0.01
1rdymachKZpA9pTYHYHMYZjfjnoBW6B3k,0.16
1rdymachKZpA9pTYHYHMYZjfjnoBW6B3k,1.35