"Add Items" needs a text search

When you press "Add Items", it shows a very length list of items in many categories. It is essential to have a text search to filter the items to make the selection easier.

Right now, we have to scroll the lengthy list and read carefully to make sure the item we want to add exists. A text search filter is needed.

*BUG: When trying to import the list on iPhone 6s running iOS 9.3.2, the app hangs forever with a "Loading" message in a black screen.

Also, there is no way to add quantities to an item. For example, on my business trip, I need to bring Laptops x3. It only allows me to add one Laptop.

Kamenrida about Suitcase things checklist, v3.3.1