Plugin: Personal Content
This plugin allow you to upload some files to specific user accounts. You can do it from admin interface in user profile at aMember CP -> Users -> Browse Users -> (edit) in section 'Personal Content'
You can upload same file to multiple user accouns in batch (based on user access). You can do it at aMember CP -> Users -> Personal Content
User in his dashboard will see new widget with files available for his account.