FF3usme6.7 Summoning

Can anyone tell me how well and how exactly the Summoning command works when you give it to one of your Characters. I've not been able to test it yet as I haven't gotten a team that far with a test hack.

Does it just point you to a list of Espers and then you summon them from there as you would if you normally would use an esper in an unhacked version of ff6?

thanks in advance.