Your request has been logged (ID 105461).
For the time being, you have two options to achieve the expected layout:
1. Add the image through Rad Editor and use its "Image Alignment" functionality like Markus has suggested.
2. Create a custom layout widget
with the needed CSS classes (like suggest in the other forum thread: http://www.sitefinity.com/devnet/forums/sitefinity-4-x/general-discussions/suggestions-for-consistent-layout-from-frontend-to-backend.aspx
). Editors will drag the layout widget first and then Content block and Image widgets in the corresponding placeholders.
All the best,
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items