In the eventuality that you need to create a new password and user name for Monta here is how to proceed:
Inside Monta go to the folder Main and select Connect, in the installed section you see the option REST API
You'll then see your Rest API details
On the right-hand side you'll see a Link to documentation, click on the "+" sign to add a new user
Insert Name and Email of the new user
Once you click on “Connect”, a final pop-up with the credentials will appear and that UserName and Password are the ones to save and use to link in our FE