Creative tab group/item inventory in Bedrock Editon

As a Bedrock user. Its kinda unfair that Java has a lot of feature than bedrock, and i wanna see bedrock lots of fun features in the future, like Mods the sofa are connected one another, amazing shaders, etc. Then i came this idea, in the java popular mods such as Cocricot, Miniaturia like any mods in java has a creative tab group from the mods itself in creative mode, and i wanna this creative tab group in bedrock as well. I did find a bedrock code making for creative tab however its has been deleted and it quite impossible to code this. I want the bedrock devs experience this then share it to the bedrock community and add-on creators will used this code in order separate the items/blocks, that would be pretty cool. Anyway please vote this in order the devs read this. Thank you!!!