multiple records form - replacing data between records!?

hi guys, I’m just thinking if this is possible, didn’t even figured out how to start but

if we have a multiple records form: each row has a check box… if we select 2 rows and hit some button there, can we make it swap the values of the fields between the rows?

anybody has an idea if this is even possible or where to start look at?

not in a form but maybe in a grid…

Regards