Thank you for your suggestions.
We maintain a list of features to add/improve in future releases.
We have been debating the idea of a control panel type feature where users could define their preferences on a number of configuration issues. Default storage location would be a good one to include.
Setting "Save As" to use current document location (if one exists) is an interesting idea I haven't heard before.
I'm not sure support for iCloud storage is possible, but I'll add it to the list.
Unfortunately I can't predict if and when any of these ideas might be added to SmartOffice. I sincerely appreciate you taking the time to let us know these would improve the application for you.