Create Data Objects should have the datadriven base class

[RoyAwesome]

This is mostly @b2zeldafreak

• Data Driven unit base is 'npc_dota_creature'
• Ability is 'ability_datadriven'

These two items should be the first and most obvious option for those categories.

[SinZ163]

item is item_datadriven but it should be a dropdown in all cases for the possible options, especially for unit

[RoyAwesome]

Everything in any of the lists is there, just the core ones that don't have an entry in the list (ability_datadriven et al) are not.

[b2zeldafreak]

Do you want these added to the list, as well as the default if none are selected?