Forums Scripts & Popups irssi function alt+a in mirc ?

Is this possible? I miss this feature so much when I use mIrc. ALT + a in irssi switches to the channel where activity last occured. It stores last activity in a queue. With this feature the usage of the mouse would decrase 95%.

#Chan7 last activity 12.39
#Chan2 last activity 12.37
#Chan4 last activity 12.35
#Chan9 last activity 12.30

Lets say im in #Chan5.

Alt+a will then first take me to #Chan7 I read whats been said press Alt+a again and mIrc will take me to #Chan2 --> Alt+a ---> #Chan4 ---> Alt+a ---> #Chan9.