Holding status: package show page: Ability to add/remove the entire package

As an electronic resource librarian
I want to be able to select and unselect a package to/from my holdings as I view a package detail record
So I can easily manage my library's holdings

Guiding philosophy

• Removing from holdings is a destructive action that shouldn’t be as prominent as adding to holdings.
• Package actions shouldn’t take place on package-title (resource) records.

There will be two primary areas where actions take place:

1. The "Holding status" form section just below the title of a detail record will indicate the current selection status AND if not selected then ability to Add package to holdings
2. The pane header dropdown at the top of a detail record allows you to remove the entire package AND add the entire package.

Styling Requirements

• "Add to holdings" should be primary button type (solid blue background).

Remove from holdings behavior

• If the user selects Remove from holdings from the dropdown then display the Remove from holdings modal (see below screenshot) that currently pops up when the user unselects a managed package AND no change to current behavior when the user elects to cancel or proceed with removing package from holdings.
  

Delete package behavior

• If the user selects Delete package from the dropdown then display Delete package modal when the user deletes a custom package AND no change to current behavior when the user elects to cancel or proceed with removing package from holdings.

Package (Managed) Detail Record (show/edit)

State	Display on Holding Status Section	Pane header dropdown options	Screenshots
Not Selected	Not Selected and Add to holdings button	Add to holdings
Selected entire package	Selected AND No button	Remove from holdings

Package (Custom) Detail Record (show/edit)

State	Display on Holding Status Section	Pane header dropdown options	Screenshots
Selected entire package	Selected	Delete package