Change the name of a group of similar nets

Hello,

At a high level, I want to change all nets within a multi-page schematic with a certain substring to another while maintaining the rest of the string. Example: 2 signals on 2 pages are: "this_signal_name_1" "this_is_another_signal." I want to change "this" to "diff_string" and have the 2 signals on different pages updated to "diff_string_signal_name" and "diff_string_is_another_signal." All prefixes and suffixes of the substring should be maintained.    

To clarify the question, I have a multi-page schematic in Allegro Design Entry HDL. There is a signal name applied across the pages that I wish to change with one set of commands, e.g. using a Global Property Change. Here is the problem. The nets all have the same prefix, but have different naming conventions given their location and connection within the schematic. Example "I2C_TX_Temp_Sense," I2C_TX_DIMM_1," "I2C_RX_MUX_3" all need to have "I2C" changed to "I3C." Do not adhere to this example rigidly, this is just the general concept. The problem I have with the Global Property Change is that I can find all nets with the "I2C" prefix when I use "I2C*." When I try to change it to "I3C*" in the Value category, it will change all nets across the design to "I3C*" instead of saving the suffix. I know there are ways to go page by page and change the net names as a group using the "find SIG_NAME=I2C*" command then changing the test file with CTRL+E, but this seems inefficient. 

I have so far been unable to get the "find globalFind {[Entire Design]}..." or "find -scope "Entire Design" ..." commands to work. I cannot find proper documentation in the Cadence Help portal for what I am looking for. I would think this is the correct idea given that I can accomplish this task on individual pages with the "find SIG_NAME=I2C*" command.

Thanks,

AGard