It's a long time since I used the Blue Sky tutorials so I'm afraid that I haven't, personally, got any images to help you.
I wonder if you have discovered the plethora of tutorials / information about SecurityAssist which can be found here. It's all worth a read and may just answer your questions for you.
As far as I am aware you cannot add any behaviours to your files while they reside on your remote server. You have to download them, carry out your work and then upload them again.