Can I subclass an LOV from another form?

Question

I'm not well-versed in Oracle forms. According to Forms documentation, a restriction of LOV's is "The LOV must exist in the active form module." But is there any way to define the LOV in a library form - (like, form1.fmb) - and have form2.fmb use the LOV without also creating it in form2.fmb?
Subclass-ing sounds like the way, but I can't figure out how to do that. The objective is to add an LOV to 5 forms by changing only the library form that they all attach, and without changing the forms themselves. I've been able to add a text item to the library form and recompiling the other 5 forms, but so far have not been able to add the LOV item this way.

Answer 1

Yes, I can drag and drop the item into the target form, but I'm trying to avoid that, if possible. Sorry if my description is confusing.
I'm working with a purchased application, and we try to minimize modifications to the baseline forms. I was able to add a text item to a data block defined in a library form, and when the 5 forms that need to display that item are compiled, they pick up the text item from the library form. I didn't have to do anything to the 5 'front-end' forms except compile them.
I don't know the mechanics of forms compiles, so I may not be using the right terminology. Bottom line is, my change to the library or template form was propagated to the other forms at compile time - having made no changes to the target forms.
When the user requested that this new field be validated against a database table, I expected that I would be able to add the LOV and the record group to the library form, and when I recompiled the other forms, the new LOV/RG would propagate to them, just as the new text item had done. However, when i do that, I get an error: 'Can't find swvpsuf_lov'.
If I go into one of the target forms and add the lov, it does work. If I go into a form and drag the lov from the library form, it also works - but I didn't have to do that with the text item so I'm preplexed as to why I have to do it with the LOV.
I'm just trying to find out whether:
a) the only way to do this is by adding or subclassing the lov into each target form, OR
b) there is some way to accomplish it by just adding the lov/rg stuff in the library form and recompiling the target forms - and how to do it.
Thanks!