Gradual changes in tempo/dynamic

The ability to notate gradual changes in tempo and dynamic (eg. cre — scen — do) was a godsend, but I’d like to ask for some small changes to be added to the backlog pile, if you agree:

Per-syllable offsets
Sometimes, it’s useful to break the regularity, so as to align a certain syllable with a salient feature in the musical text or just to offset a syllable away from a barline, for example.

Also something I’d like: ending markings on the last syllable instead of a line.

Thanks for any consideration!