How to access pokemon go secret incubator item menu:
- on the menu, click items menu
- click a potion or other item
- on the blank screen (when no pokemon are damaged) ‘swipe across’
- a second menu will appear with a grayed out incubator icon.
you will get the follwing screen;
if anyone is able to use items on your eggs let me know, i want me a ditto. it could have something to do with THIS