Swap

I want to swap for eg: from A_B_C_D_E to C_A_B_D_E or A_B_D_C_E.
Please advice.
Thank you.

Read the User Guide - particularly: www.advancedrenamer.com/user_guide/regular_expresions

Try..

Replace: (.)_(.)_(.)_(.)_(.)
with: \3_\1_\2_\4_\5 and \1_\2_\4_\3_\5 etc
Using regular expressions

Reply to #2:

Thank you Mr. David Lee for the advice.

I learn a new trick.

Thanks.