BlockMatrix delivers powerful, easy editing of block attributes in a familiar spreadsheet style format.
BlockMatrix is a considerable time saver. Find/Replace across multiple drawing files, increment integer values (very useful on tag numbers!), and change the visibility state of dynamic blocks.
Videos demonstrating some of the functions are available on YouTube:
Small Scale Incrementing & Importing Data from Excel: https://www.youtube.com/watch?v=BJGsq53gT40
Changing Visibility States: https://www.youtube.com/watch?v=NwRAki5esUs
The Find/Replace/Increment Dialog & Large Scale Incrementing: https://www.youtube.com/watch?v=OWZx-se002M