Hey @jhall
just to be clear: do you want to sort the table that contains all the object types or the table that contains the object of a clicked type?
I'm afraid the object type table can not be "sorted by default" - it is also more of a configuration part of i-doit.
The table of objects (of a clicked type) can be sorted by other fields 🙂 For this you can open the table configuration via the button on the top right corner of the table.
Best,
Leo