Assign a SELECT item's list of values - APEX 2.2.0

Hey, all,
Is there a way to assign the list of values of a SELECT item programatically, besides the usual query-in-the-LOV? I am reusing a page 0 region and have a SELECT item that can take on a wide range of lists of values. Something like:
AddOptionToSelectItem('P0_MY_SELECT', 'Yes', 1);
AddOptionToSelectItem('P0_MY_SELECT', 'No', 0);
or:
SetLOV('P0_MY_SELECT', somethingRepresentignAListOfValues);
If that cannot be done, I'll just put all of the parameters I need to figure out what goes into the select list into page 0 items and either write query the old fashioned way or write a PL/SQL function that takes the parameters in and returns a table.
Thanks!

In case this helps, you can specify an item's LOV attribute as a function that returns the LOV query, e.g.,
return my_lov;
Scott

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