Save data from Custom Page to flash

[Yaxit]

Hi, as from the title, I'm trying to set up a system with a simple custom page where the user can enter some data (a single number in my case) that persists as the credentials do.
Do you know if this feature exists?
I could only find documentation for the Credentials being saved on flash/nvm, and the JSON format serialization, which is an option but arguably not equally efficient.

Thank you for any indication/suggestion!

[f4b0]

Hi, have you found a solution for your request because i run in to the same problem?

Thanks

[Yaxit]

I have not searched further, as this was for a hobby project. However in case you discover anything please post it here