cobalt stone
If you are unaware, the return home block can be seen in the horror levels, sending you back to the home map in the click of a button!
However, the horror maps are uncopyable, making the use of these impossible :P
These would be very useful for maps that send you to outside areas without an accessible exit. For example, for a pvp map you get sent to a small box, but the box has no exit until the timer is up, labeling the map a "trap map", risking it's removal. However, with this button, that issue is no more!
Possibly a version you can set to specific maps would also be cool (alike to the portals and such)
opaque nacelle
naive plover
half marsh
frosty skiff
lucid helm
near wigeon
floral crow