States Activation System aka State-Based Passive Augments, Version 0.2

[Ace]

you could put this in your skill scene:

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if Input.trigger?(Input::A)
# Play cursor SE
$game_system.se_play($data_system.cursor_se)
# Switch to skill screen
$scene = Scene_State_Skill_Selection.new(@actor_index)
return
end
# If L button was pressed
if Input.trigger?(Input::S)
# Play cursor SE
$game_system.se_play($data_system.cursor_se)
# Switch to skill screen
$scene = Scene_State_Skill_Selection.new(@actor_index)
return
end

and this one in your state skill activation scene

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if Input.trigger?(Input::A)
# Play cursor SE
$game_system.se_play($data_system.cursor_se)
# Switch to skill screen
$scene = Scene_Skill.new(@actor_index)
return
end
# If L button was pressed
if Input.trigger?(Input::S)
# Play cursor SE
$game_system.se_play($data_system.cursor_se)
# Switch to skill screen
$scene = Scene_Skill.new(@actor_index)
return
end

(but with your skill scene you have to define different keys if you are using the ctb by charlie)

I think this should work