Sounds like a classic UT Translocator
No, there is nothing more to do but scripting. Although I'm still using X9, it shouldn't be different in X10 I guess.
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Make TWO pickups. Both MUST have PHYSICS ALWAYS ON. Now, write a script that makes only PickupB able to be dropped back on the floor by pressing a key after it was picked up, PickupA stays in your inventory forever.
Then, PickupA needs to have PickupB in its "ifused" string.
Now you simply script PickupA to be Transporter, and PickupB to be Transporter-Exit. And PickupA transports you to B whenever a certain key is pressed.
If you compare this example to UT, PickupA would be the translocator weapon, and PickupB would be the small Transport Pad that is fired by the weapon (although you wouldn't be able to to this with a WEAPON in FPSC).
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C'est ca, read the standard transporter scripts carefully and use the community guide, and you should be able to do this quite quickly.
Hope it helps and someone correct me if I'm wrong