The macro "The Icy branch" for "Icarus" can be downloaded and used on any mouse and keyboard.
Installing the macro is very easy in the Keyran program and increases your skill level in Icarus, if you follow the
instructions!
To effectively use damage without using R, you can create a manual slowing combination. An Ice Fang is set to key 2, a Frost Bomb is set to F2, and an Ice Squall is set to 5. By combining these skills and activating them alternately, you can inflict much more damage to the enemy.