Special issues of journals - how to input

This may be a crazily obvious question, but if so, it’s a bit shy presenting itself to me. Thanks in advance for your help!

I have several journal articles that are from special issues, but I cannot figure how to enter the special issue name.

For instance, I have had no problem inputting the correct information for the journal article (output in Turabian 8th):

DeBats, Donald A. “Political Consequences of Spatial Organization: Contrasting Patterns in Two Nineteenth-Century Small Cities.” Social Science History 35, no. 4 (Winter 2011): 505-41.

However, I have no idea how to properly input the following information so that it, too, will be properly formatted:

Special Issue: Historical GIS and the Study of Urban History

I have 30 or 40 articles from various special issues, so this is a pressing question as I continue to input them into X8.

As I said, the answer is probably staring me in the face, but I’ll be darned if I can figure it out on my own.

Thanks!

Wouldn’t it just go in the Journal field within the Endnote record? But it may depend on your discipline’s style guidelines. Which style are you using?