Hi @jon maj I don't quite understand what you mean by combination. According to the example you mentioned, get the content of the first column = 1 in set 1, and get the content of the first column = b in set 2. Then combine based on match items, like this?
1 1/10/2024 mach1 b 1/9/2024 mach1
Please tell me more details. Best regards, Aniya