I post this as a bug and not a suggestion, because really annoying: If you place a block comming from the Toolbar and then retrieving it, it doesn't go to the toolbar again, but in the player inventory, forcing me to transfer every time. I call this an unnecessary harassement and it needs to be changed, it's also the only grip I have with the otherwise excellent building UI. Please FIX this soonest, thank you. Greetings, P.S: While you are at it: The undo function in Survival in the N menu would also be fine. Not everyone is a building expert to do things always right. Thanks.