How do i make gate open and close? Please help me with this small thing +REP

Hello,
I need help with a small thing: i have a gate, and i want it to open automatically only for players that have [BD] tag in front of their name. (I want it to open when they go near the gate and i want it to close when they go away from it.)

Here is the gate coordinates when the gate is in the ground: I want it to open like that the gate moves up in air, and closes that it moves back down. (Only for players that have [BD] tag in front of their name).

Please help me guys,
Thanks in advance.