HHD 112 egg incubator-how to add water

[The flockers]

I must be missing something ....I cAnt for the life of me figure out how to add water to the water tray without opening the incubator. Anyone able to point out the obvious ???

 

[ChickenCanoe]

I found this.
112 egg incubator manual | Breezeworks

 

[Ambermclain22]

I must be missing something ....I cAnt for the life of me figure out how to add water to the water tray without opening the incubator. Anyone able to point out the obvious ???

Same issue here, ours has a yellow lid, 112 egg incubator with no brand on it that we got at an auction