Objects on Path needs more options and in its current setup is very limited in its usefulness. This tool feels like it's still in beta. Whilst it's good at doing the one thing it's designed to do, it's missing a lot of useful capabilities.

One of missing bits is the ability to nudge or rotate individual elements along the path.

Other two requests are:
1. Objects on Path needs an ability to keep orientation of objects relative to page/path, similar to blends — http://illustrator.uservoice.com/forums/333657/suggestions/48984890
2. Add an option to measure gaps between objects in Objects on Path by their bounds, not between centers — http://illustrator.uservoice.com/forums/333657/suggestions/48987905

(Originally by Lewis Tsalis)