Location of trigger reference

[daftspunk]

Some changes are needed, but I can't find where the $refs/defintions/Trigger reference is stored for a pull request.

Changes required as in the screenshot:

• New action called fill, which can check a field or set to the fill[somevalue] to a specific value
• It is possible to have multiple actions separated by a | pipe character

[SergeyKasyanov]

For yaml schemas I use this