Adding attachement during post edit

Regards m8 hackers
I've a small problem, I have searched all the site finding no answers. One of my vbb users asked me to add usefull feature to vbb like adding an attachement during post edit. Now - user has to add a new answer to add an attachement if it was not added in the original post. Is there an easy way to correct that/add that feature? May I ask you for help? If this post is supposed to be placed in other part of that Forum - plz move it.

Regards,
SoBal