Yeah I have a plan to add XREF, runways, parking positions, helipads, static aircrafts and such but that'll take a while to implement, the main reason being that all these don't rely on the TOC file but the TSC file and it's in a different format along with some other properties and so on. Right now the editor is primarily aimed towards cultivation only (TOC). The parser I wrote can handle any AFS2 format so that shouldn't generally be an issue anyhow.
I need to do a bit thinking on how that would integrate (i.e. you have to open the TSC and the TOC file and how that plays out). It'll probably take two weeks as I won't get much time to work on this for the next few weeks.