Eye of the Flügel : does it work for you?

[Baaleos]

Using infinity evolved:
Equip the eye in action bar, select it - no GUI options etc

My understanding is that it should allow for up to 12 waypoints to be set?

 

[HeroWing2]

Well you need a filled Mana tablet in Your Inventory then you hold it in Your Hand then you have a similiar in World gui to the assembly hollow. Then you rightclick on pickture to save Your location and if you ever click the Same again it will tp you There
Also if you have the eye of the flugel you have infinite flight with the flugel tiara But i think that wont help you in hardmode

 

[Adagiovibe]

Using infinity evolved:
Equip the eye in action bar, select it - no GUI options etc

My understanding is that it should allow for up to 12 waypoints to be set?

It was nerfed many past versions ago. Now it only allows one location for you to teleport to.