About sending silver & resources

[DanDan]

The game has been a while, and fort & city introduced, so silver to conquer is a big amount.

Swiping to get close amount is really a pain for me, several times I got quite annoyed, can we change to type in the exact anount? Very neat way to do business, as well as sending resources.

If can be put into next update, would be very much appreciated!