Herb Catalyst?

[MPN64]

After beating Yingzhao I got an herb catalyst - Description is insert on the pipe to get more healing effects.

How do I insert it on the pipe? - There is no option on the save station for this!
For now I continue to play mite unlock later? Anyone know?

[Scorpix]

Go talk with Kua Fu and upgrade your equipment.

[MPN64]

Thanks!
I missed the fact that I needed an herb catalyst and money to upgrade the pipe with him:)