Merge blocks are pesky workarounds. Now that we have things like welders, rotors, pistons, programmable blocks, and scripts like MArmOS, perhaps Keen could kick something our way to make the automated construction of things in survival a little easier? Some ideas I've had: The ability to merge blocks without the use of a merge block, by using welders. The idea I had was a non physical block, called a weld surface. It takes no materials, it's just a 2D "block" there to denote that the surface in question is weldable to another weld surface. You bring two weld surfaces near each other, like a merge block, and use a welder to "weld" them together. They then just snap together like any merge block. This would also carry over into blueprints, meaning you could do something like mass produce hull plates, use an arm to position them, and a welder to weld them into place. To make this a little easier, one could have the weld surface remove the border around the block, allowing you to slot things into place (currently you can't do something like pushing a single block through a hull, because both the single block and the hole have a border that make them too big to fit). This is my biggest suggestion. A third grid size, extra small. This would make tiny welder arms possible, as well as tiny rovers and a whole slew of other devices. This is a bit far fetched, but I feel the current two sizes are a little restricting. Ropes. Hoist things up. Perhaps make a spool block to wrap the rope around that attaches to a rotor? Ropes have been on my list for a while since stabilizing grids has become a hassle, usually requiring a Tug ship or a mechanical arm. That's all I've got for now, I'll update with more. Feel free to add your own, I'm rather curious what others have in mind.