When you are in the add pin command (Layout >Pins menu selection) you have the same options as the copy command with respect to the quantity, spacing and order in the Options tab
Set the rotation of the pin, the initial pin number, the increment and digitize an XY location. Pins will be added using the quantity, spacing, and order you specified.
Changing the Offset X and Offset Y values offsets the text of the pin with respect to the padstack.
A hint on getting help from within Allegro on commands. When you hover the mouse over a menu selection so that it is hilighted select the F1 key. This will bring up help on the command.