Hi, I am following this tutorial https://docs.google.com/document/d/1RSu7MRLSwfYYH5E9bqxiJ930QgocDDCHx2PLV3-R_pY/edit?fbclid=IwAR2JA9J3Hx35W6-crqzWUqcxXUW1IjLxNMWd1aMbuLdVl8_adziAApfP5cU# and stuck in creating custom action.
Followed the instruction and added School_Teacher_Collection as Name and Class as App\School\Teacher\Collection. However, nothing seems to happen after clicking the save button.