This idea has been merged into another idea. To comment or vote on this idea, please visit S1-I-539 Number's Order Correction 1,2,3,4.
The reference is ordering by order, but all references are not organised in order as certain numbers are mixed up. For example, 1, 31, 32, 33, 34, 2, 35...
Automation for the numbering would be nice too like in sage 50 with the transaction numbers.