Poetry Project Type

I understand that Scrivener can not be all things to all writers. However, it would seem that the poetry project type would benefit from some kind of specialized features. I have not found these features available in ANY writing software to date. please make me aware of any that do have these features.

In order of desirability:
1)Format retention upon compilation and export
2)Syllable count per line- this would be really useful
3)Select a word to be presented with rhyme, synonym, antonym, assonant, or consonant
4)Highlighted word stresses, to aid in the crafting of iambic pentameter, or any other meter

Just a couple of thoughts. Great software.