1. walk up to elevator and press E key.
2. The panel dialog shows correctly. (unavailable in early access is shown on red box) but otherwise the panel dialog displays correctly.
3. Click on the X button in upper right corner of panel dialog.
The X button on the panel dialog screen does not work. (possibly bugged because the box shows Unavailable in Early Access after I completed Tier 7 unlock items?)
Only pressing ESC key works to exit and close the Space Elevator panel dialog.