I have created my own custom GPT using the “My GPTs” platform on GPT4. Now I want to add a new action to this app, via My GPTs -> choose my custom GPT -> Configure -> Actions -> Create new actions

This action should be:

1. Trigerred by any question asked by the user
2. Append an additional content onto the question, and then pass the question to GPT.

The problems I met are:

1. I can’t find anywhere to configure the triggers of the actions.
2. I tried to waite a piece of openAPI schema script to create the action, but don’t know how to fill in the field of “servers” -> “url” field.

Could anyone who have GPT experience please kindly advise? Thanks a lot!