Make “auto-donate” a feature in alliances. This way, people who are away from their devices can donate from their treasure chamber while they’re gone (until gold has run out).
Also, it makes donations less of a hassle for long-time members.
Finally, it lets us know if a player is more loyal to the alliance.
The feature should be switch-able, of course, for those who are amassing gold for an upgrade or who like to donate manually.
(Yes, for some who donate 250k+ this will mean only a few donations but for others it would be great. Maybe a 1.5M Chamber is in order, though.)