How to change the tokenizer in custom API connections?

[KingXMAX]

I use OpenAI-Compatible API via custom connections (Grok and Hyperbolic API) in Agnai but i can't find the option to change the tokenizer to Claude. So, how do i change the tokenizer in the custom API page? Is there a hidden function or a workaround to do this?

[sceuick]

I will add a tokenizer option to third-party presets.