Design Review. 

• Adding all events can be selected at any time. If an individual group is already selected this will be folded into the all events group. - No grey number of selected items appeaars next to input field in this case.
•Background blue in a selected item, only appears where the selection was explicitly made in that interaction.

ie. Not for previously selected items or for selections as part of the select all. 

• Modal button is disabled if no selection is available 

• Options cannot be removed from the modal, removal must occur via the pills in the table (and display the warning modal if mapping has occurred. 

See Prototype 

Code looks fine. asia.malina, please check if the behavior of the "All events in a single group" option is what is expected. Right now, if the option was added; when the modal is opened again, it is possible to deselect it and select a single option, which might be inconsistent with the behavior that single groups cannot be deselected in the modal.

Design review:

1. Update text for all events selection to...
'Combine all events in a single group'

2.As per Stammies comment about the all events behaviour. We had hoped to retain any created mappings. But in the current framework, this creates confusing behaviour. 
We will remove the ability to safely break up a combined events group to keep consistency of behaviour in the selectable items. 
Behaviour: Items cannot be deselected from the 'add events' modal. 

Thanks all!