Is there a way to populate "modifiedData" from useCMEditViewDataManager() (@strapi/helper-plugin)

HI, i am developping a custom plugin for my strapi project. I have two level of dynamic routing : frontendUrl/:motherPageSlug/:slug. The plugin includes a preview button that onclick should build the preview url but my motherPageSlug from my page collection is a relation type field. I dont see it in modifiedData when i log it. Is there a way to populate it ? I am trying to develop a service that calls my page to return the motherPageSlug to fix it but it is not the ideal solution and i cant get to fetch my strapi api/page from my custom plugin (even using get from getFetchClient from @strapi/helper-plugin).

This topic has been created from a Discord post (1269418893852803103) to give it more visibility.
It will be on Read-Only mode here.
Join the conversation on Discord