I have another question about the insert of a dash-sign (-) in a code of 7 characters.
That is if there is a way to search for 4 digits or for letters in a row (could be any digits or letters) and when so to separate them in 2 parts of two with a dash in between.
Examples of such codes to be changed:
12-ABCD changed into 12-AB-CD
ABCD-12 changed into AB-CD-12
1234-AB changed into 12-34-AB
AB-1234 changed into AB-12-34
Help will be much appreciated!