Redmine

This ticket is related to #17071 and #17579.

In Zitec, we are trying to find a clean UI/UX solution to allow users to add multiple entities when performing multiple searches in modals like Add Watchers, Add members, Add projects. The current issues are very well explained in the related tickets.

We came up with 3 proposals:

1. add_to_bottom.jpg which display the selected entities (users for example) under the search results section:

2. add_to_right_with_checkbox.jpg which display the selected entities to the right of the search results

3. add_to_right_with_x.jpg same as 2, but an "X" icon is used to remove the selected entities.

Personally, I like the 3rd solution. Any feedback is welcome.