For the kind of work I do, I use the type on path feature all the time. In Adobe Illustrator, there was an option to center the text on the line (vertically center that is) and have it stay centered regardless of what typographical changes you made (changing font or size etc.)
I understand that there is a manual way to achieve this, but for my use-case, swapping fonts, using the feature all over the place, it is horribly cumbersome to manage the baseline across a large project (every time the font changes, or the size changes, we have to go back and adjust the baseline again). And you cant just highlight everything and adjust it together, because often I'll have a mixture of sizes and fonts all using text on a path.
Basically, what I want is a way to enforce a 'vertically centered' baseline for text on a path and have it persist across font and font-size changes.
I presume this is possible because the software demonstrates that it is aware of exactly where 'top' and 'bottom' are for any given font. An option to 'lock to the middle' should just require that upon a font or font-size change, the software recalculates what baseline value is 'center' and sets it accordingly.
Once again, I know there are manual ways of doing the above (dividing the top by 2 and setting the baseline accordingly etc), but specifically what I'm asking for is a way to enforce this and not need to touch the baseline setting again.