Is there a way.. for example: to remove defence structures or ships from the building box at the bottom? or you stuck with it?

Buildings and researches can be cancelled, defenses and ships cannot once their production has begun.

*Psst* if you have Safaris you can cancel it But don't tell Zorg

Sorry to contradict kick, but I recently learned that defense and ships on going production can be canceled. Go to the production queue, select one of the queue and press ENTER. Queue will be stopped and the res will be sent back to your storage.

I hope this works for everyone. waiting for a confirmation from admin cause seems like its a glitch and we are exploiting it

I can confirm that it doesn't work for me.

i can confirm that it doesnt work for me either

Keep in mind that you can be banned for exploiting a bug.

If I remember correctly, it worked on Chrome.

I use chrome, if it works in a browser that means the function is available. If not will like admin to post clarifications please. Cause there should not be any reason that i cannot stop the production. Till then I am using it as feature.