Using Tools when Smithing

[god]

Dunno if anyone posted this, but the screen shows you can bring up to three tools into the smithing process. I've tried this in several occasions, but have never seen any of the tools I thought I brought in show up during the smithing. Anyone else have this problem? (I've had to complete all the smithing without the use of tools instead)

[enigma]

When smithing, you need to double-tap on a resource to have it bring up the tools page. Then you can change what you double-tapped into that resource.