Destroying entities rehired a tool in creative mode

Destroying entities such as mine carts and paintings require a tool such as a sword or pick axe in creative mode, where I'm supposed to be able to destroy anything with any block or tool that I please. However, now when I want to destroy an entity, I need to go to the inventory and use a tool to destroy it, which is inconvenient . I play on 0.15.0 beta build 1 but this issue has been present since 0.12.1