What you are describing I don;t think can be done (I am not totally sure you can change default text as I could not do it in the desktop app but I could do it via a script in my terminal). However, if you are using Travis CI you could just add a git tag and make a small configuration change to your build and that will automatically trigger a build.
To do this you would need to add a git tag like such:
on:
tags: true
Next you would need configure your build, I just created this sample:
language: nodejs
nodejs:
- 5.7.1
deploy:
provider: heroku
strategy: git
skip_cleanup: true
app: myapp
on:
tags: true
nodejs: '5.7.1'
api_key:
secure: yourapikeyhere=
Travis CI has a nice documentation about all the possibilities.