Yes you can Annaliese but you need to have a free account with imgbb or another compatible image host site. I use imgbb and it works fine.
For imgbb you upload a picture to the account then you open the image, press c and it brings up a dialogue box. If you click the drop down arrow in the first box and select "BBCode full" you will see the code text appear in the second box. If you move your mouse into that box you get a copy button the right hand side. click this.
Then, go to your message in Susans write your message and then where you want to insert the image you just right click, select paste and voilla! If you want to see your image before you post the message then click on the preview button below the message body.
I hope that makes sense!
