Save/share custom test presets

[cute-catgirl]

Right now you can save custom texts, but it would be nice if there was a way you could save an entire custom test - with the settings for randomization, length, etc.
It would also be cool if you could share these with others, probably via a custom url.

[Miodec]

You can already share test settings (esc > share test settigns). Storing the custom text settings shooould be doable too.