On some of the larger maps, it gets a bit tedious when you've got a large force and you're taking territories that you don't want to advance units into, to keep having to scroll up to 0 units.

How about adding an "Advance 0 Units" button to section where you select the number of units to advance.

I'm curious if offering an alliance in secret is against the rules.
I don't mean having the alliance and never telling, but making the agreement/ discussing the terms.

I never offer any alliances, but in part this is because it is somewhat risky because if the other player does not accept, your ...

Secret Alliance

Suspect users: Viper 1

Game number: http://www.conquerclub.com/game.php?game=218376

Comments: Kindly uncovered by Sofuca in http://www.conquerclub.com/game.php?game=220628 , Viper 1 is caught red-handed offering a secret alliance against me to Monkus in the game of singles we're ...