What operation does the command with a cross and triangles at the end perform?

The command represented by a cross and triangles at the end performs the Move and Copy operation. This command is particularly useful in design environments where you need to reposition a selected element or duplicate it.

When the command is activated, users can select an object or multiple objects and then either drag them to a new location (move) or hold a modifier key to create a copy in the new location, effectively allowing for efficient use of existing design elements without needing to recreate them. This operation simplifies the workflow by allowing quick adjustments and repetitions of parts within a model, enhancing productivity and accuracy during the design process.

The visual cue of a cross and triangles signifies a dual action — the potential for movement and also for duplication, which is why this option aligns with the Move and Copy function.