Minecraft Bug : Experimental Gameplay Button deleted ?

Hello, im LordOfCheaters, and i have created an texture pack who Add new items with an app (Crafty Craft on the app store) and the app say to add an item activate Experimental gameplay.

so i export my texture pack to minecraft, and i want to activate the Experimental gameplay, but the button isn't here / is replaced by the Holiday Creator Features button.

so please re-add the Experimental Gameplay button

or make when we activate the Holiday Creator Features button its activate the experimental gameplay.

 

thanks for your attention. -LordOfCheaters