Snap to target(s) I/O

Question

When in construction mode you would have an additional hotkey to hold to select/deselect structures. Once something is selected, the area you can build in is restricted to areas that snap with the selected structures inputs and outputs. If you select multiple structures then the building area is further restricted down to the areas where the input/outputs intersect.

Once a structure is selected, the snapping distance would be infinite, allowing accurate building placement over longer distances.

Answer 1

You already have snap to grid option while building on ground Just hold CTRL, or autmaticaly when on foundations

Comments

You don't already have snapping to a specific buildings inputs or outputs, which is what the suggestion is about, it makes no mention of requesting "snap to grid".

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That CTRL function is hit and miss at best. Lines up with the centerline of the machine, or "snaps" to something clear across the factory.