How to calculate the straight line distance between selected objects

[Anonymous_a9d0f6f8f5225663a91b285ef892b0bb (Faizel Chen)]

[Everynone]

Length of A-B. Or even:

Same thing.

[Anonymous_a9d0f6f8f5225663a91b285ef892b0bb (Faizel Chen)]

Thank you, but I don’t know how to connect this step

[Everynone]

If you have at least 2 elements in that array:

[Anonymous_a9d0f6f8f5225663a91b285ef892b0bb (Faizel Chen)]

Thank you for your help