How can I insert an appropriately sized image with ratio intact with Elgg core plugin Embed 1.9?

By dranii

I am using Embed 1.9 core plugin with Elgg 1.9.4
All that I can do is insert the thumbnail of an image file - how can I insert an appropriately sized image ?

There are brilliant coders here - can they provide some solution/release modified mods so that
there are admin settings for Embed 1.9 that can
1) determine the size of images for blog posts, comments separately and keeps the image aspect ratio
2) can limit the number of images particularly in comment so that activity stream does look neat
3) the current thumbnail insertion is good for comments
4) Instead of a separate 'Embed Content' use the Image insertion button of CK Editor. This will be so much easy and intuitive for the poor and dummy end-user.
5) The upload button easily seen in visible area ( see picture)
6) The access level of the blog post, comment or content is automatically inherited without the user having to bother untitled44