RDE records your key operations on editor in codewindows, and replay them. [Macro]-* This function help you to do simple and repeating operations.

When you replace number. with (number), You can use this function.

1. item1
2. item2
3. item3
4. item4
5. item5
6. item6
7. item7
8. item8
9. item9
10. item10

Move caret top of line 1.

Press KeyMacroRecord([Shift]+[Ctrl]+[R]). Press below

1. insert "("
2. press [Ctrl]+[Right]
3. press [Left]
4. press [Backsapce]
5. insert ")"
6. press [Down]
7. press [Home]

Press KeyMacroRecord([Shift]+[Ctrl]+[R]) again or KeyMacroStop to stop record.

Now you can press KeyMacroPlay([Shift]+[Ctrl]+[P]) 9 times.

(1) item1
(2) item2
(3) item3
(4) item4
(5) item5
(6) item6
(7) item7
(8) item8
(9) item9
(10) item10