95 Eldo need to program keyless remote?

Does anyone know how to program the #1 keyless remote on my mom's 95 Eldorado? I have no idea how to do it. I'm assuming it is some combo of holding down the lock and turning the key or something like that?
Rob

Note: Before starting this procedure, BOTH transmitters must be present. Failure to use both transmitters will render the RKE system inoperative.(If the customer uses only one transmitter on the vehicle, use this transmitter as transmitter 1 and 2; which is not the normal situation). The entire reprogramming sequence must be completed within 30 seconds of grounding the reprogramming connector [Step 1 and 2 below]. If the procedure is not completed, remove the ground at the connector and restart the procedure from step [1] one.
Transmitter

1994 - 95 Cadillac RKE Programming

Ignition ON.
Ground black single wire connector located at trunk pull down unit.
Wait for door locks to lock and unlock [a few seconds]
Press the UNLOCK button on the first transmitter twice. Pause for one second between presses.
Wait for door locks to lock and unlock. [a couple of seconds]
Press the UNLOCK button on the second transmitter twice. Pause for one second between presses.
Wait for door locks to lock and unlock. About two seconds.
Remove ground from black connector. After procedure, check to see if both transmitters operate the door locks. Repeat programming procedure or replace transmitters as necessary.

Can you program 2 of the same model remotes keyless remotes 10178734 i have 2 of them 4 the same car