Better Object Custom Properties

I'm writing an add-on that utilizes a library of blender objects. Each library asset needs custom properties associated to it. When using the Custom Properties panel in 2.8, I noticed it's a bit lacking in important features.

Here's my request:

• The Edit Property pop-up appears upon clicking the Add button
• Allow the selection of a data type from [Int] [Float] [String] [Bool] as buttons
• Have the property edit UI change based on the data type selected above
• Allow presets for adding a group of custom properties
• More obvious Bool type (actually use a check box rather than 0 or 1)

I'll add a mock-up photo once completed.

Thanks