EmEditor 14.3.0
Starting with sample text
apple banana cherry
apple banana cherry
apple banana cherry
apple banana cherry
apple banana cherry
apple banana cherry
apple banana cherry
apple banana cherry
Type CTRL-H to bring up the replace box.
Type banana in the Find field, type grape in the Replace field.
Click Find Next and it highlights banana on the first line.
Click Replace and it replaces banana on the SECOND line with grape.
Each subsequent click of Replace replaces banana every other line with grape so you end up with
apple banana cherry
apple grape cherry
apple banana cherry
apple grape cherry
apple banana cherry
apple grape cherry
apple banana cherry
apple grape cherry