setValue input field

Is there a way to patchValue instead of setValue on an input field?

I have a button when clicked, sets the value of a field. However, there are a few buttons so want the ability to add more values to a field instead of setting just one value. Thoughts?

patchvalue is used in angular. what exactly do you want to do? Can you give an example?

serverconnect queries all emails related to a company. I have them displayed like so, this way the user can choose which email to send to. Right now when they click the button, the input sets the value of the email. Would like to alter the value if they click another button without replacing whats there

image