Wall manual activation?

[True God]

How do you actually use wall manuals? I have some in store but unlike speed ups i can't seem to be able to activate them.

 

[Dan Heitner]

Press upgrade, then choose manuals. You need a certain number of them depending on wall level. Level 11 requires 7 manuals.

 

[Kastelain]

There are two Upgrade buttons, one to upgrade with gold and one with food. There isn’t any option to just upgrade and then choose a method.

Are Wall Manuals broken?

 

[Cannibals]

I also have no plain Upgrade button - just one for food and one for gold.

 

[No Angel]

Hit either of those 2 buttons (food or gold) then the Wall Manual will appear

 

[Cannibals]

Thanks
No Angel