How to Set hidden character palettes for all buttons

[Asef Hassan Amiz]

Hi everyone, well i have this mugen question which is very difficult to explain in words,
but oh well I will ask it anyways,
I downloaded these mugen characters like Iori yagami (kof) , Ken (from Svc) & Gaoh (samurai shodown 5)
The thing is - during the character selection in my roster, when i choose this Iori pressing ANY button WITH HOLDING the START button, i get to play as Orochi Iori instead of just Iori.
The Same happens with Ken, when i HOLD START Button & press ANOTHER Button i get Violent Ken instead of normal Ken
and for Gaoh (SS5) , when i HOLD START Button i get the "Makai / Demon" Gaoh ( that armored boss from SS5) instead of the human Gaoh.
So Basically What I Want is to get these Hidden Characters available Pressing any button WITHOUT Holding the START Button.
because i find this really annoying always Holding the Start Button to get these Special Characters.
So here is my question, How do I make these Hidden characters available to play as  WITHOUT the Need of Holding the START Button.
Can Anyone Please Help ? Thank you Everyone