Ouro pillar and corner rooms
I think you mentioned several suggestions people have been asking for (in more or less general ways) for years now. I wish the Devs would do a major update to bases to cover many of these things but, well, I think you know how that goes. *shrugs*
Loth 50 Fire/Rad Controller [1392 Badges] [300 non-AE Souvenirs]
Ryver 50 Ele� Blaster [1392 Badges]
Silandra 50 Peacebringer [1138 Badges] [No Redside Badges]
--{=====> Virtue ♀

(Don't ask why I put Earth there. Edited to fix.)

Ahh, the Pillar of Ice and Flame. Useful little thing to have in the SG base, if you use ouro. And, being a control item, it's nice to be able to put it in the Oversight Center.
And then your SG grows, you dump the oversight center, and have this little pillar that looks rather out of place in the middle of your mainframes.
Could we, perhaps, have that item allowed in Teleport rooms as well? If it can't be dual-flagged, perhaps a second one (and while we're dreaming, a "tech-themed" one with the crystal suspended in the middle) flagged for use in teleport rooms?
While I'm at it - right now, if I just want to turn a corner (have an "L" bend) or extend a hallway a bit, I have to use a rather-expensive-for-what-it-is single "space" defensive room (65k) to do so. A nice, cheap (1-5k?) flagged-for-nothing-but-decoration single spot room would be useful. (So would smaller "rec rooms.")