Related options / ordering of different repeated options

[YeungOnion]

I wasn't able to find something in the Options docs on this, but maybe I'm thinking about this in the wrong way. I'd like a multiple option to affect other option's args until overridden by another instance of this modifier option. An example would be some kind of shared modifier to other options, like a prefix.

... --my-opt a-somewhat-long-prefix-to-a --my-opt a-somewhat-long-prefix-to-b --my-opt a-somewhat-long-prefix-to-c --my-opt a-somewhat-long-prefix-to-d --my-opt a-somewhat-long-prefix-to-e ...
... --my-opt-prefix a-somewhat-long-prefix-to- --my-opt a --my-opt b --my-opt c --my-opt d --my-opt e ...

but this can get a little more elaborate,

... --my-opt a-somewhat-long-prefix-to-a --my-opt a-somewhat-long-prefix-to-b --my-opt not-too-long-prefix-to-c --my-opt not-too-long-prefix-to-d --my-opt not-too-long-prefix-to-d ...
... --my-opt-prefix a-somewhat-long-prefix-to- --my-opt a --my-opt b --my-opt-prefix not-too-long-prefix-to- --my-opt c --my-opt d --my-opt d ...
... --my-opt-prefix a-somewhat-long-prefix-to- \ # expanded for comparison to un-prefixed
    --my-opt                           a --my-opt                           b \
    --my-opt-prefix not-too-long-prefix-to-                                   --my-opt                        c --my-opt                        d --my-opt                        e ...

Is there a way to group the --opt-prefix options with multiple --opt options until --opt-prefix is set to something else? Could have default for empty prefix to allow passing --opt before any --opt-prefix options.