Attaching Cuplers

[Revencher]

I am trying to use multiple coupling devices to attach a gantry to a rocket, but once the rocket is attached to one of the couplers on the gantry i cant attach any more of the gantry couplers to the rocket.

it seams like once 2 items are attached i can not attach them agen in a different place.

[sal_vager]

This is due to the way craft are made in KSP, you can't have two decouplers attaching to the same thing, such as the top and bottom of a booster.

Instead we have to use struts to secure the booster to the other decoupler, when the decouplers are activated they will both push the booster away though