When building the block definition, the selection order is the key. If you simply window off the geometry there is a good possibility the prompt order will not be as desired.
When selecting objects for a block definition, first individually pick the attribute definitions individually in the order you want to be prompted, then select the rest of the geometry.
Article ID: 1072
Created: April 3, 2016
Last Updated: April 3, 2016
Author: GstarCAD Malaysia
Online URL: https://www.gstarcad.com.my/knowledge/article/how-do-i-control-the-prompt-order-for-attributes-1072.html