sleepychef it is no harder than attaching a photo to an email.
Here is the easiest way

Use the full editor
In the grey section at the bottom of the window you will see Attachment Manager
Click on Attachment manager
It will open another window and allow you to drag and drop from your computer or use a file select a file
Once you have completed that hit done
And you are finished.
When you post your response the picture will be attached at the bottom

Which this gave me a chance to post a Santorini picture from 2003