There are keymaps for: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, -, =, Control + Spacebar, a few others.

You'll want to press your hotkey (forget the default, as I've changed mine) to enable and then disable keymaps. Then press the hotkey to enable repeater. And enter your password once, for all accounts.

Depending on if you have an authenticator, and how many B.Nets you have, will determine if you want repeater on, for authentication or not.

The default was Keymaps on, so the 1, 2, 3 etc keys did not do the normal action. With keymaps disabled, they'll work fine. Or you can use the numpad numbers as a work around. But it is pretty easy to press the Keymaps On/Off hotkey twice.