# So place a core, and two aux power blocks
# Drag the aux power to the hot bar
# Get in another vessel and destroy the second block you placed
# Get back in the orignal vessel, The power aux block is no longer on the hot bar.
# Also if you place any other block in the spot that was destoryed it will be in your hot bar
# For example if the second block was destroyed and you place a power cap, the power cap will be on your hot bar but will not be activatable