Sash / Scarf switchbot

Hi, I'm looking for a "way" to change bonuses for scarf /sash automaticaly like a switchbot. As its is on the server I play you have to switch manually. The server is Calliope2Global. Ty in advance for help.

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Or can u guys help me with a switch that I can use to change bonuses for a scarf or to add other items beside normal gear?