The UI is designed so modules can be used individually, or added as library modules in the usual NodeJS manner and widgets cherry-picked as needed.

There are a number of points where UI default choices can be overridden:

• Actions on Composer: by changing the config value for 'actionServiceProvider' from ui-modules/blueprint-composer/app/index.js, a different set of actions can be displayed on the composer screen

• Composer - Virtual palette items and alternate catalog endpoints: by registering a different blueprintServiceProvider items for the palette can come from Brooklyn and/or other sources, with other sources converted to “virtual items” that can extend existing Brooklyn items

• Composer - Custom Config Widgets: special widgets to use for config keys can be specified in a registered type's definition as a map tag, for example for the demo widget suggestion-dropout included we might have '{ ui-composer-hints: { config-widgets: [ { key: start.timeout, suggestion-values: [ 30s, 2m, 5m, 30m, 2h, { value: forever, description: ‘No timeout’ ], widget: suggestion-dropdown, label-collapsed: fail after, label-expanded: Fail if not successful within } ] } }(as shown in the accompanyingvanillia-with-custom-widget.bom`); widgets should be registered as angular directives using the standard Angular naming conventions (e.g. suggestionDropdownDirective), as done for that directive in app/index.js and app/index.less.

• Composer - Identify entities and other items to be preselected when “Recent” is applied by adding a tag of the form { ui-composer-recent-preselect: 100 } (where the number 100 determines its sort order)