While waiting for a more sophisticated numbering feature in IQ, why not just include a feature/function which would renumber selected items using the "Order" field in 2 different ways :
1- Restart numbering : from 1 to Last item in selection
2- Continue numbering : from x to Last item in selection
3- Loop numbering : from x to y
4- Field : [user specified field -- Order would be the default field.]
"x" or "y" are a user defined values.
(since IQ's pasting mode "loops" (or "repastes") the pasted patterned whenever there are selected available, option #3 would be very usefull when renumbering a recurring pattern of items)
How would this work, UI wise ?
1- the feature would be accessible from the item context menu --> renumber.