uc_attribute_per_role allows site administrators to define on a per-role basis which attributes should be hidden to the users of an Ubercart site. For example, the site administrator could have the a 'gift wrap' attribute hidden for members of the 'wholesale' role.
Hidden attributes are removed from the Ubercart product add to cart forms and thus do not display on the cart, checkout or order forms either.
Required attributes displayed in the form of form elements that get a default
value set (for example, select boxes) may affect a product's price even though
it is not actually displayed to the user.
Role weights is not implemented by design. Users who are members of multiple roles will simply have attributes hidden according to the matching attribute per role definitions for each of those roles.
Blajax eases working with blocks both for a user and a site admin. It adds a toolbar to each block that enhances drupals standard block behaviors. This is, besides, somehow similar to the "contextual links" approach in Drupal 7 and thus there will most likely be no 1:1 port for D7. I'll leave the project open to see if D8 will still leave a gap or provide Ajax powered block refresh ootb.
Features
Configurable toolbar with optional functions (probably more to follow):
Hide - if a user is allowed to disable the block, he can do this with one click. He no longer needs to leave the current page to edit is profile settings.
Minimize/maximize - any block that may be disabled can instead be minimized to a simple caption bar.
Refresh - depending on configuration and permission, the user may refresh the single block without having to reload the entire page. Very helpful e.g. while editing a node.
Configure - depending on permissions, a direct link to the block's configuration page
Auto-refresh Each block can be configured to update itself via Ajax within individual intervals.
Full REST fallback - All functions except auto refresh will also work on browsers without Javascript enabled.
Customizeable appearance - choose between icons and/or text links, determine jQuery effects and behavior as you like.
Full theming support - all visuals can be overridden with custom icons, css and templates or theme functions.