Welcome to the Community, @user21656 
If you mean the custom loader, we already have this Wishlist request. You can upvote it here - Custom Page Loader.
However, if it’s not what you’re looking for, please describe your idea in more detail 
Welcome to the Community, @user21656
If you mean the custom loader, we already have this Wishlist request. You can upvote it here - Custom Page Loader.
However, if it’s not what you’re looking for, please describe your idea in more detail