I attacked with this Character and did not activate its [When Attacking] effect. If I then use its [Activate: Main] effect to set it as active and attack again, can I activate this [When Attacking] effect?

[OP06-118_p5] - Roronoa Zoro (Premium Booster -The Best-: Manga) - One Piece Card Game

[OP06-118_p5] - Roronoa Zoro (Premium Booster -The Best-: Manga)

Card Description

[When Attacking][Once Per Turn](1)(You may rest the specified number of DON!! cards in your cost area.): Set this Character as active. [Activate:Main][Once Per Turn](2)(You may rest the specified number of DON!! cards in your cost area.): Set this Character as active. <span style="color:red">Disclaimer: This card was reprinted from the original set without the original textured foil.</span>