Call emails with different arguments via UI

[markets]

Allow to call emails with different parameters instead of those defined in hooks, via interface.

[mtomov]

Yes please :)

[markets]

@mtomov yes, would be nice to have this feature some day in Maily 💪🏼 (feel free to send a patch).

In the meantime (since Maily v2), you can use the "versions" feature, so at least you can configure different versions by default for each email: https://github.com/markets/maily#email-versions