Restrict dropdown alignment in the image picker dialog

Currently the alignment options are hardcoded in the ImageBrowserDialog class, could this be modified to be configurable from the console.

Like the image.variants 'Size' dropdown.
http://www.onehippo.org/library/concepts/document-types/html-fields/html-fields-configuration-properties.html

• Plus to be able to configure the default (preferred) value from the console.

I have already reached out to the Hippo Community:
https://groups.google.com/forum/#!topic/hippo-community/HuscL5svLm0

See screenshot