MultiSelect Recipients on Email Record

Sometimes it can be painful to have to click email recipients individually to add them as a recipient to a Dynamics email if there's more than 10 people you want to email, and Quick Campaigns don't let you access custom entities that are email enabled. 

Could we use a PCF control to multiselect recipients and choose if they go into the To, CC or BCC fields?

Here's the steps you might take for such a control:

Steps:

1. Click into the PCF control to search for recipients
2. Select which field the recipients are going to go into (e.g. To, CC or BCC field)
3. Enter search criteria
4. Results across email enabled entities returned
5. Filter the record type (just like you would in the existing recipient fields) e.g. select from Accounts, Contacts or other email enabled entities
6. Then have the option to multi-select recipients or 'Select All'
7. Click OK, or Apply and the end result is that all the recipients are added to the To/CC/BCC field you selected in Step 2

This would be awesome, if possible!