How can Identifying a scenery bgl

I've made a large airbase 'Keevil' (in north Wiltshire) with a scenery bgl 'Keevil_TW.bgl' which I opened with Instant Scenery. I clicked Move/delete but the object wasn't recognised in the usual way (red box, etc) so I can only conclude that Keevil_TW.bgl isn't the scenery file I added these objects to.I did this (added objects to the wrong airfield scenery bgl) when I first stared this malarky months ago & in answer to a question I posted somewhere about finding the proper scenery bgl, someone told me about a bgl recognition utility that identifies the object bgl & the scenery bgl its been added to. After installing the software you press ALT & it appears at the top of FS window in tools I think it was (?). I've reinstalled FS & can't now find this magic bgl recognition software thingy. I've surfed some site files but no luck there so far. I'm hoping someone here can help me?Thanks.