Fake block

How can i send a player a fake block and tile and still add the inventory to the player?

 

Can you please explain?

 

Just spawn the chest 4 blocks below the player...

 

I want to send a block to a player with a tile and add the tiles inventory to player but I don’t want anyone to see the the block or tile just the player am sending it to.

 

That’s not what I asked for.

 

Send the block only to the player

 

Or even better, just use muqs chest gui