Steps on writing an editorial:

1. Choose your topic wisely
- Choose an issue that has been making the headlines on public recently.

2. Declare your agenda outright
- Make sure that you state your opinion coherently.

3. Build yout argument
- A good editorial expresses his/her own Point Of View.

4. Strengthen your own argument with analogy
- If your writing a topic about a controvecy issue like a secret, look for other similar instances.

5. Provide a possible solutions
- And your own journey doesn't end here.

So, I hope I somehow this step help you. And the written below the steps are my opinion/example. If your not satisfied to my answer, you can ask again to others. ^^ Hope I help you a little.